HINATUAN ENCHANTED RIVER CAVE EXPEDITION V

Enchanted River in Hinatuan, Surigao Sur is one wonder of nature that have captivated my curiosity. Beautiful and mysterious – there is something beyond that blue waters.  The increasing “load” of the river due to influx of tourists and visitors have endangered its delicate state.  I hope that the Local Government Unit (LGU) of Hinatuan will seriously consider the recommendations from this report.  This gift of nature will surely become “a victim of its own success” if no concrete sustainability plan is in place. Kudos to Filipino Cave Divers!

filipinocavedivers's avatarFilipino Cave Divers

The following is my official report to the Municipality of Hinatuan on Enchanted River Underwater Cave Expedition V (August 18-19, 2013):

HINATUAN ENCHANTED RIVER UNDERWATER CAVE EXPEDITION V

AUGUST 18-19

A Report by Alfonso Y. Amores, MD

Members:

  1. Doc Amores
  2. Jaime Lapac
  3. Larry Williams
  4. Rio Lapac

 Introduction

 In June of 2012, Expedition III was stopped dead on its track by a then unexplained blockage of the cave entrance by a pile of limestone. It now appears that this was caused by a cave-in based on further interview of the Enchanted River maintenance crew. Furthermore, review of our video footage of Expedition IV (June 20-21, 2013) reveals irregularities and cavitation of the cave ceiling right in the vicinity of the cave entrance and the forward half of Mayor’s Chamber. This expedition is intended to explore this particular area and document the possible cave in site.  Additionally, a brainstorming with Mayor…

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Diving Responsibly

Diverse, healthy and colorful reefs for the future!

“I get excited about the concept that we can do for the ocean what’s been done for the land in terms of protecting areas of national parks.”  ~Dr. Sylvia Earle~

Ecotourism is becoming fast popular due to the growing awareness and concerns on environmental issues, the advocacy to manage tourism in an ecological sustainable way. Many divers, dive operators and resorts lead in protecting marine ecosystems but as reefs attract increasing numbers of tourists and more resorts, greater controls became necessary to prevent the reefs from being damaged.  Many people are also concerned on damage that can be done by divers. Keeping the areas of marine environment ecologically sustainable depends as much on divers as well as dive operators and resorts.


Divers have great responsibility in protecting marine world much that no other can defend the ecosystems than those who first love the seas and oceans.  Here are few reminders for responsible divers who are keen on sustainable ecotourism management:

  •  Master good buoyancy control, coral is killed by divers touching it while adjusting their buoyancy
  • Be properly weighted and have all equipment tucked in to avoid touching marine organisms
  • Do not use deep fin-strokes next to the reef – the surge of the water stresses delicate organisms
  • Do not wear gloves to avoid the temptation to hold onto live corals
  • Reef hooks will  be used only when necessary and on dead part of the reef
  • Do not move marine organisms around to photograph them or hitch ride on turtles, manta rays or whale sharks – it causes considerable stress
  • Avoid several people crowding in underwater caverns or caves and do not stay long as diver’s exhausted air suffocates the resident creatures
  • Do not participate in spear-fishing for sport – selective killing of the larger fish upsets the reproductive chain
  • Do not collect or purchase marine souvenirs
  • Before booking on a resort, check the company’s environment policy
  • Donate to group or organization to offset the carbon emissions of flights
  • Every dive is a clean-up dive, your hands is not too full to pick any trash during the dive
  • Support every marine conservation activities and programs in your area

Divers are ambassadors of the ocean, the tiny minority who witnessed the wonders of the marine world and understand the importance to the health of planet.  Divers would be more evangelical about the seas, without doubt divers had a special role in broadcasting the message that our ocean are in trouble.  The health of the oceans is an indicator of the health and future of our whole world. We have great responsibility!

 

Few Facts on Sharks

Reef sharks in a cavern in Gato island, Malapascua
Reef sharks in a cavern in Gato Island, Malapascua

In celebration of Shark Week, which was originally developed to raise awareness and respect for sharks, it would be interesting to know few facts about this often misunderstood species.. Hopefully, this will gain more understanding of this amazing marine creatures.

1. Sharks move like airplanes. They create forward movement with their tails (like propellers) and water moves over their fins like wings

2. Different sharks have different etiquette for feeding. Caribbean reef sharks, for example, have a pecking order catering to large sharks 1st

3. Certain shark species (such as great white) will drown if they stop moving. They lack necessary muscles to pump water through their mouth

4. Blue sharks are piggy eaters. They’ll keep eating until they regurgitate, after which they go back to eating!

5. 20% of sharks are close to extinction because of commercial fisheries accidentally catching sharks with their hooks and nets

6. Researchers have discovered common objects (tires, gasoline tanks, and license plates) left intact inside the stomachs of tiger sharks

7. Hammerhead sharks’ oddly shaped heads, called cephalofoils, are equipped with electrical sensors, making them superior hunters

8. Sharks aren’t color blind. Divers have claimed that sharks are attracted to certain colors, such as the “yummy yellow” of some wetsuits

9. Almost 50 different shark species have light-emitting organs called photospheres. Sharks use their light for camouflage and to attract mates

10. A shark’s size relates to where it hunts: smaller sharks feed near the ocean floor, while larger sharks hunt in the middle ocean depths

11. When the USS Indianapolis was attacked by a shark during World War II, 900 sailors were stranded in the Philippine Sea near Guam for 4 days

12. While more likely to die from drowning, surfers can succumb to shark attacks because of their boards, which to great whites resemble seals

13. Shark fin soup is a delicacy in China and is served at important events like weddings and anniversaries. The dried fins resemble noodles

14. You can’t see a shark’s ears, but their inner ears can track sounds of their prey from lengths of more than 800 feet (244 meters)

15. Sharks are susceptible to the moon’s control of ocean tides. Moon phases affect sharks’ eating habits and draw them closer to shore

16. Sharks have an astounding sense of smell, so powerful that they can detect a single drop of blood in an Olympic-sized pool

17. Signs that a circling shark will attack: it will hunch its back, lower its pectoral fins (fins near its belly) and swim in zigzag motions

18. Even though sharks have razor-sharp teeth, they don’t use them for chewing prey. They are for ripping; resulting chunks are swallowed whole

19. Punching a shark in the nose or poking its eyes can help to fend it off during an attack. Most sharks don’t want to work hard for their food

20. While many of us have learned to fear sharks, they are the ones who should fear us. Humans kill 73 million sharks annually

NB. Photo courtesy of my dive buddy Angel during our dive at Gato Island

Blue Spotted Stingray

Blue spotted stingray are bottom dwellers frequently on sandy area
Blue spotted stingray are bottom dwellers frequently on sandy area

The bluespotted stingray (Neotrygon kuhlii) or Kuhl’s stingray, is a species of stingray of the Dasyatidae family. It is light green with blue spots. Its disk width hovers around 42 centimeters (17 in). It is popular in aquaria but usually not distinguished from the bluespotted ribbontail ray. The ribbontail is rounder with brighter blue and more vivid spots, but the bluespotted stingray is larger.[1] The stingray’s maximum age estimate is from one to eighteen years of age. The bluespotted stingray preys on many fish and small mollusks, but is also preyed on by the killer whale and hammer head shark.[2] The bluespotted stingray is also generally found in Indonesia to Japan, and south to Northern Australia. The bluespotted stingray is also targeted by many parasites such as tapeworms, flatworms, and flukes.

Our second and third dive in Bacuit Bay last June was graced by these interesting species and what a joy, it was my first up-close encounter with them.  One was camouflaging on the white sands. Our DM poked it and it just hopped few steps from us, obviously not disturbed by our presence. Its disk gracefully flapped and landed peacefully on the sands again.  The myth was that they can whip with their powerful tails with poison.  But it appeared friendly and calmly resting, though not playful.

I relaized that Entalula Island and Twin Rocks are identified sanctuaries of stingrays, perhaps if I got the chance to dive again at El Nido in the future, I could chance upon a herd of them lining up with their pups. Then I could swim with them side by side while they flap gracefully.  Just like Stingray City in the Grand Cayman!

NB. Photo credits to http://www.flmnh.ufl.edu