Colase Marine Sanctuary: A Colossal and Rich Marine Treasure in Samboan

Healthy corals

Have you seen the National Geographic documentary film Aftermath: Population Zero? The feature gives us an insight of what happens to Earth, including its plant and animal life, if all of humanity suddenly vanishes. Without a single human to destroy and pillage natural resources, the planet truly heals and becomes a bustling biological paradise. We found evidence of that no-human-intrusion healing process in Colase Marine Sanctuary, located within the rustic town of Samboan in southern Cebu.

Samboan is known for Aguind Falls, its most popular natural attraction. However, the municipality has so much more to offer. Irwin Gamallo, Samboan’s tourism officer, invited us and Alexa to visit and discover other natural attractions that make Samboan an eco-tourism capital. His invitation was fully supported by Mrs. Victoria Calderon, chairperson of the Samboan Tourism and Heritage Council and the wife of Samboan Mayor Joseph Calderon.

Interestingly, Sweetie’s mother, whose birthday coincided with our trip, decided to come with us so she could experience our adventuring life.

We departed Cebu at Saturday, 5PM. After a 4-hour bus ride, we arrived at the poblacion of Samboan where Irwin took us to our accommodation, a lovely room at Mayor Calderon’s seaside guesthouse. A home-cooked dinner and a cool shower awaited the tired and hungry travelers.

Although we were facing west, we woke up at 5AM to see the early morning activities at the shore. It was still dawn, but fishing boats of all sizes have begun docking at the shore. People in the barangay wake up early and eagerly flock to the shore for the arrival of these boats. Doing so allows them to purchase the freshest catch at the lowest prices.

The haul of the bigger boats are then transported to the public market where they are sold at a higher price.

First catch of the day

At around 6:30AM, our driver fetched us and took us to Samboan’s scenic Poblacion, or town center. Samboan is the second southernmost municipality in Cebu; getting there from Cebu City requires a 140-kilometer, 4-hour bus ride. The municipality is surprisingly rich in natural and cultural treasures.

Siyempre Samboan

Sir Irwin met us at the lively Samboan Public Market where we had a traditional, filling Filipino breakfast of tinolang isda (fish broth with spring onions, onions, and chilis), paklay (stewed pork innards), hard-boiled eggs, pan de sal, and coffee. For adventurers, the market is one of the best places to get authentic specialties of a region without breaking the bank.

We love visiting town markets like these where we can buy cheap produce and observe local culture.

Public market and breakfast

Burping our breakfast away, we drove for 15 minutes and headed straight to Barangay Colase, our first destination for the day. Barangay Colase is home to one of the most well-preserved marine sanctuaries we’ve ever visited.

Due to lack of attention over the years, the sanctuary’s visitor’s center and watch station have begun to deteriorate. However, the structures are already there, and it will just take some rehabilitation to make them functional again.

Colase Marine Sanctuary

Do not expect a nice sandy beach. The marine sanctuary’s shoreline is made of pebbles, rocks, and washed-up dead corals and seashells. There are, however, nice spots of beach that are covered with coarse sand.

Also, check the long concrete seawall at the right side of the photo. Above that seawall is the highway, which means that Colase Marine Sanctuary is very accessible. Thus, it has all the necessary ingredients of being a very attractive and successful eco-tourism destination.

Unassuming beach

If the beach does not impress you, then the seascape definitely will. The marine sanctuary overlooks a scenic vista of beautiful Tañon Strait and the blue mountains of Negros. On a clear day, one can see Mt. Talinis in its full majesty.

Tanon Strait

Sweetie and I excitedly donned on our snorkel gear and entered into the cool, crystal clear water. Do you know how clear it is? Check out the photo below. You can clearly see the corals underneath the water’s surface.

Very clear water

We just waded less than ten feet away from the waterline in knee-deep water, but we already encountered a large number of soft corals. Take a look at them; they are all very much alive and undamaged!

Moosehorn Corals

This coral looks like the massive horns of a moose!

Moosehorn corals

Spiky staghorn corals grow in large clumps along with other types of corals. Relatively undisturbed by human presence, these corals thrive even in the shallowest areas of the foreshore.

Staghorn corals

Check out that very healthy, pretty starfish. Remember that at this point, the water is still thigh-deep.

Blue starfish

As we swam to deeper water, we found bare areas of fine white sand between coral fields. We were utterly amazed at the massive coral field that lay just in front of us.

Colase Marine Sanctuary

Just look at those lovely hard corals! It’s very obvious that they are healthy and alive.

At this point, the water is only waist deep. Physical contact with the corals, which should be avoided, is a real possibility. Therefore, snorkelers, especially those who are not yet proficient in controlling their buoyancy, are strongly advised to wear PFDs or life jackets to avoid touching the corals.

Colase Marine Sanctuary

More healthy soft corals! Their branches sway gently together with the current. Corals make perfect hideaways for fish, crabs, mollusks, and other denizens of the sea.

Soft coral

This is a perfect example of synergy and cooperation. A small but tough brain coral protects a delicate sea anemone from the brunt of the current. The sea anemone, with its stinging tentacles, protects the clownfish from predators.

Sea anemone

Look at those strangely-shaped periwinkle-colored corals! The world beneath the sea is utterly vibrant!

Colase Marine Sanctuary

With the Colase Marine Sanctuary so close to the highway and civilization, we can’t help but wonder how it was able to thrive with very little damage. According to Irwin, the entire coastline was declared a protected area two decades ago; the declaration is still in effect up to the present day. The protection status prohibited locals from fishing in the area.

Deprived of their usual fishing grounds and unwilling to break the law, the fisherfolks looked for other places to fish, leaving the coastline undisturbed. The absence of human intrusion allowed the corals to survive and flourish.

Colase Marine Sanctuary

Check out that large school of fish ahead. Flourishing and undamaged corals are essential in the functioning of a thriving marine ecosystem. They serve as shelters and hunting grounds for innumerable marine species.

Presently, the reef is managed by the Samboan municipal government together with a fisherfolk organization.

Colase Marine Sanctuary

Sweetie and I decided to go to deeper water. The deeper we swam, the thicker and healthier the coral fields became. Huge coral fields like these help absorb and dissipate wave energy, protecting shorelines from premature erosion. In fact, many small islands and islets cannot exist without the reefs to protect them.

Colase Marine Sanctuary

Now I know how swimming in an aquarium feels like. For optimum visibility, it is best to snorkel early in the morning—about 7AM to 9AM—on a clear and sunny day. That’s because the silt on the seabed hasn’t been stirred yet by natural and human activities.

Colase Marine Sanctuary

We had so much fun looking at the colorful and interesting denizens of the reef. According to Irwin, there are even sightings of turtles, sharks, and whales coming to visit the reef. We were hoping for an encounter with these magnificent creatures; unfortunately, we didn’t see any cruising by.

Colase Marine Sanctuary

Hi, there, little fish! Your home is so beautiful! This is just a very, very small part of the reef; we just snorkeled around an area of just a few square yards. Yet, we already saw a colossal diversity of sea life.

Thus, if you include the adjoining reefs of Bonbon, Tangbo, Suba, Poblacion, and other coastal barangays of Samboan with Colase, you will realize that Samboan has one gigantic coral reef system that needs to be treasured and preserved.

We snorkeled for half an hour before we decided it was impossible to cover the entire reef.

Lots of damselfish

Here’s a short video of our first visit to this magnificent marine sanctuary. You can probably see that it is indeed a majestic place.

The Colase Marine Sanctuary is an excellent example and standard of successful marine ecosystem preservation. The corals are so well-preserved that it is difficult to imagine that this was once a fishing ground. The entire place is teeming with vibrant marine life , and there seems to be no border to this bustling underwater biological city.

With the right mechanisms, political machinery, and laws in place, there is no doubt that Samboan will have a real, world-class, and sustainable eco-tourism destination.

Colase Marine Sanctuary


  • P 170 – bus fare (non-airconditioned) from Cebu City to Samboan (same rate applies on the return trip)

Tell the bus conductor to drop you off at the visitor’s center of the Samboan Marine Sanctuary; it is just beside the road. However, not many conductors may know where it is. That is not surprising because it is not a popular destination. If the conductor has no idea where the marine sanctuary is, just drop off at Poblacion Samboan. Take a habal-habal, and ask the driver to take you to Colase Marine Sanctuary.

  • P 15 to 20 – habal-habal fare from Poblacion Samboan to the marine sanctuary (same rate applies on the return trip)

Marine Sanctuary Rates (as published by the Municipality of Samboan)

  • P 20 – life vest rental
  • P 20 – snorkeling set rental
  • P 100 – snorkeling fee
  • P 150 – scuba diving fee (bring your own equipment as well as divemaster, dive buddy, etc. They don’t have a dive center in the sanctuary)
  • P 350 – scuba diving fee with camera
  • P 1,000 – glass bottom boat tour for 10 people

* We did not include our expenses for snacks, tips, and other fees in this rate sheet as you may have different needs, preferences, itineraries, and sharing scheme from us. Note that all figures are subject to change without prior notice.


1. For more information, guideship, and assistance, get in touch with Samboan Tourism Officer Irwin P. Gamallo at 0925-5061879. You can also search his name in Facebook. Until the LGU establishes the appropriate mechanisms and procedures, we strongly recommend you get in touch with him first so that he can inform the Colase barangay officials to assist you.

2. At the moment, proper snorkeling equipment provided by the Samboan LGU may be lacking. We recommend you bring your own snorkeling equipment and PFD.

3. The Colase Marine Sanctuary is very pristine. It took the absence of humans to make it this way. However, after this blog post and once the Samboan LGU establishes the mechanisms, policies, and advertising machinery, we are expecting more people to come and visit the sanctuary.

The presence of humans will definitely be a threat to the stability and survival of the sanctuary. Thus, it is imperative to observe responsible eco-tourism practices. To preserve the marine sanctuary, please strictly observe the following rules:

  • Always wear a PFD (life jacket) even if you know how to swim. The PFD allows you to float on the surface of the water, which lessens the chances of touching or stepping on the corals.
  • Do not wear fins. One careless kick from a fin can damage the corals.
  • Do not snorkel during extremely low tide. Your body may scrape the top of the corals. You can start snorkeling when the water is waist-deep.
  • You may wish to take a closer look, but your PFD prevents you from doing so. Ask your guide or snorkeling buddy to accompany you to deeper water (at least 8 to 10 feet deep). From there, you can take off your PFD and dive, being careful not to touch the corals.
  • Avoid moving a lot. Swim slowly and gently. Unnecessary strokes run the risk of hitting the corals.
  • Do not disturb wildlife. Just float back and observe the natural activities.
  • Avoid wearing sunscreen. Sunscreen has harsh and toxic ingredients that can harm the corals.
  • If you absolutely need to put your feet on the seabed, find a sandy patch first before putting down your feet. We recommend wearing protective foot gear such as aqua shoes.
  • Please mind your trash; it does not belong to the sanctuary. Do not leave any of your garbage behind.

4. Whatever yo do, never touch, step on, or break corals. The slightest touch can compromise their protective mucus layer, which can damage them. Don’t even think of taking one as a souvenir! Corals are very delicate and form an important part of the sea’s ecosystem. In addition, many corals, especially fire corals, can sting; and those stings can be very painful. We have a friend who was hospitalized due to fire coral contact.

5. To make most of your time, visit Calasa Falls, which is just in the same barangay. After that, you can also head off to one or more of Samboan’s waterfall trilogy—Aguinid, Dau, and Binalayan Falls.

6. Pack light but do bring the following:

  • water (at least 2 liters)
  • snorkel gear (mask and snorkel)
  • PFD or life jacket
  • swim wear, rash guard, cycling shorts
  • aqua shoes
  • extra clothes
  • sunglass, hat, umbrella, and malong for sun protection
  • snack
  • extra money for emergencies

About Gian and Sheila

Rock climbers. Mountaineers. Sweethearts on adventure. Adrenaline Romance is a photoblog that belongs to a loving couple who has an eternal lust for adventure. The blog contains experiences, tips, itineraries, and other useful information regarding adventuring in the Philippines and beyond.

29 comments on “Colase Marine Sanctuary: A Colossal and Rich Marine Treasure in Samboan

  1. Nice one, have been to Aguinid falls before but we still have to explore the marine sanctuary 🙂

  2. WOW! That is impressive indeed to have corals in such great shape so close to the shore anywhere near where people live.
    I am definitely planning to return to the Philippines this November or December, apparently I should check this area out.

  3. I will visit this place! so beautiful!!

  4. I do remember in my early 20s , i would just paddle on a sunday morning a few meters in front of my moms beach cottage in poblacion samboan, and i would see these huge brain coral formations the size of VWs..vibrant coral fields of varying coral species.. I would just snorkel the whole morning and be lost in that underwater world..it was amazing.

    Im glad the local MG has taken steps in the conservation to revive the surrounding ecology of colase …preservation and sustainability is the key to survival. Its imperative to remember we are not end users of this earth but humble stewards to ensure that the succeeding generations would have the chance to enjoy our beautiful oceans.

    Great work on featuring the reserve, Im glad u guys are so passionate about responsible eco tourism and preservation. Thank you.

    • Hi Hanz,

      That is great! We also hope that the municipality takes good care of natural treasures like these.

      Thank you too for your compliment about us being stewards of eco-tourism. We feel that it is everybody’s responsibility to take good care of Mother Nature.

  5. Such a wonderful trip!
    This blue starfish is amazing! 🙂

  6. Thanks for the feature hope you can share other photos. Sorry i wasnt there when you visited. We slso appreciated your blog about aguinid.

    • Hi Ms. Marivic,

      Thank you for visiting our humble blog. Thank you very much too for the accommodation, tour, meals, and guideship services. We must say that Samboan is an exceptional destination. Please do take care of your natural treasures.

      Yes, maam, we are periodically sharing photos in out Twitter, Instagram, Facebook Page, and other social media accounts.

      We still have more blogs about the waterfalls in Samboan. Stay tuned.

  7. Been looking for places to go on weekends while in Cebu. This is perfect!

  8. Oh wow! I love the area. Are the prices fixed?

  9. I am extremely happy to see that this part of Cebu has a marine sanctuary. I never knew until I read your post (million thanks!).Considering that coral bleaching is everywhere now, it is a massive relief to see such rich and diverse coral bed well-taken care of by Samboanons. Kudos!

    • Hi Travelosio,

      Thank you! That sanctuary is indeed beautiful and pristine. But that’s just a very small part of the reef. If other sections of the reef that line up the coastline of the municipality are included, it may turn out that Samboan has the largest marine sanctuary in Cebu! 🙂

  10. Thanks for this! Been looking for info about it 🙂

  11. Nice post in your blog.
    I’m a prof. Dive master so…just an FYI….
    You may want to add to you list of do’s and dont’s to have a stick long enough to touch the bottom sea bed in case any swimmers who may trip or sway with the currents accidentally “slip”. This’ll avoid the corals.

  12. […] in one day! And if you have time to spare, have a bonus adventure by exploring the coral fields of Colase Marine Sanctuary, which is probably the largest marine sanctuary in southern […]

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s

This site uses Akismet to reduce spam. Learn how your comment data is processed.

%d bloggers like this: