Clownfish, Philippines. Photo by Stephane Rochon.

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Best videos

Richard Sedlmayr dives from the New York Research Boat : RV Garloo with buddy Pete Bucknell to the ship wreck of the SS Oregon.

Buy Sarah's music: 05:26

United States of America


Gravière du Fort

Scuba Diving in Riviera Maya, Mexico.  
Dive location:  The Pit.  115 Max depth, 47 minute dive. Dive 1 of 7. 
Expert guidance by 

An amazing deep dive, with everything from overhang environments to amazing light displays, hydrogen sulfide clouds, stalactites, stalagmites, columns, and even a tiny fish.

Filmed with Olympus E-PL1, YS-01 strobe (not used for video), iTorch Video light, and Dealextreme SSC P7 900 lumen dive torch (which flooded at 10 ft at the tail end of the dive) 05:22

The pit

Squat lobsters, hermit crabs, true crabs and sea urchins. Part 3 of my documentary, "Mucky Secrets", about the fascinating marine creatures of the Lembeh Strait in Indonesia.

In this video we first look at more marine crustaceans. First we meet squat lobsters. The elegant squat lobster, Allogalathea elegans, lives commensally on the arms of crinoid feather stars. It feeds on plankton collected by its host, and its colour often matches the crinoid for camouflage.

Next we encounter squat lobsters of the Galathea genus fighting for territory on branching sponges at TK 2.

Hermit crabs don't have a hard carapace like other crabs, so they recycle an empty gastropod shell to protect their soft abdomen. They carry their adopted home around with them, and long eye stalks ensure that the crab has a wide angle of view. We encounter whitespotted hermit crabs, Dardanus megistos, living in empty cone shells and conch shells. We also meet an anemone hermit crab, Dardanus pedunculatus, carrying sea anemones on its back in a classic example of mutual symbiosis.

We then meet a pair of box crabs, Calappa sp.. The male box crab carries the female everywhere with him until she has moulted her shell and is ready to mate.

Camouflage is important for Lembeh's true crabs. We encounter a rear-spined elbow crab, Aulacolambrus hoplonotus, and a decorator spider crab, Achaeus sp., perfectly camouflaged in their environment.

A zebra crab, Zebrida adamsii, clings to the spines on the underside of a highly venomous flower urchin, Toxopneustes pileolus, using the last segment of its legs which has evolved into a hook.

Blue-spotted urchins, Astropyga radiata, are also highly venomous and gather in groups at dive sites such as Hairball. Juvenile emperor red snappers, Lutjanus sebae, often shelter amongst these sea urchins in a commensal relationship.

There are English captions showing either the full narration or the common and scientific names of the marine life, along with the dive site names.

"Mucky Secrets" is being serialised weekly on YouTube. Please subscribe to my channel to receive notifications of new episodes as I release them. The series will feature a huge diversity of weird and wonderful marine animals including frogfish, nudibranchs, scorpionfish, crabs, shrimps, moray eels, seahorses, octopus, cuttlefish etc..

The music tracks are "Mountain Breeze (pad)" by Purple Planet ( and "Arrival of the Broken Kings" by Klangachse (

Thanks to Tom Cusack of Leafy Lane Productions ( for the music track, "Mystery 2" and to Kevin McLeod of for the music track, "Covert Affair". These tracks are licensed under a Creative Commons Attribution 3.0 Unported license.

Thanks to the staff and keen-eyed divemasters of Two Fish Divers (, for accommodation, diving services and critter-spotting.

The video was shot by Nick Hope with a Sony HVR-Z1P HDV camera in a Light & Motion Bluefin HD housing with Light & Motion Elite lights and a flat port. A Century +3.5 diopter was used for the most of the macro footage.

I have more scuba diving videos and underwater footage on my website at:

I post updates about my videos here:

Full list of marine life and dive sites featured in this video:

00:05 Elegant Squat Lobster, Allogalathea elegans, Aer Perang
00:29 Squat Lobster, Galathea sp., TK 2 (Teluk Kembahu)
00:58 White-Spotted Hermit Crab, Dardanus megistos, Two Fish Divers house reef
01:22 White-Spotted Hermit Crab, Dardanus megistos, Retak Larry
01:35 Anemone Hermit Crab, Dardanus pedunculatus, TK 2 (Teluk Kembahu)
01:56 Box Crab, Calappa sp., TK 1 (Teluk Kembahu)
02:55 Rear-Spined Elbow Crab, Aulacolambrus hoplonotus, Nudi Falls
03:08 Decorator Spider Crab, Achaeus sp., Makawide
03:25 Zebra Crab, Zebrida adamsii, Jahir
03:33 Flower Urchin, Toxopneustes pileolus, Jahir
03:40 Zebra Crab, Zebrida adamsii, Jahir
03:56 Blue-Spotted Urchin, Astropyga radiata, Hairball
04:34 Emperor Red Snapper (juvenile), Lutjanus sebae, Jahir
04:42 Bluespotted Stingray, Neotrygon kuhlii, Hairball 05:11

Teluk Kembahu 1

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  What's up

  • Nov 14 
    [ Dive site ] La Gaviota Mexico, Baja California, La Paz Isla Partida
  • Nov 14 
    [ Dive site ] C29 Mexico, Baja California, La Paz Isla Partida
  • Nov 14 
    [ Dive site ] Swanee Reef Mexico, Baja California, La Paz Isla Partida
  • Nov 14 
    [ Dive site ] La Tintorera Mexico, Baja California, La Paz Isla Partida
  • Nov 14 
    [ Dive site ] Sandy Slope Indonesia, Bali, Menjangan island
  • Nov 10 
    [ Dive site ] Barco Encayado Mexico, Baja California, Isla Cerralvo
  • Nov 08 
    [ Dive site ] Manta Point Indonesia, Bali, Nusa Penida
  • Nov 04 
    [ Dive site ] Delfin Beach Resort Reef Bonaire, Bonnaire South
  • Nov 04 
    [ Photo ] Aer Banua 4 Indonesia, Sulawesi, Bangka.
  • Nov 04 
    [ Dive site ] Aer Banua 4 Indonesia, Sulawesi, Bangka
  • Nov 04 
    [ Photo ] Aer Banua 3 Indonesia, Sulawesi, Bangka.
  • Nov 04 
    [ Dive site ] Aer Banua 3 Indonesia, Sulawesi, Bangka
  • Nov 04 
    [ Dive site ] Banc de Chicharvel France, Aquitaine, Basque Coast
  • Nov 04 
    [ Dive site ] Small Wall Bonaire, Bonnaire North
  • Oct 30 
    [ Dive site ] Aer Banua 2 Indonesia, Sulawesi, Bangka
  • Oct 30 
    [ Dive site ] Aer Banua 1 Indonesia, Sulawesi, Bangka
  • Oct 29 
    [ Dive site ] Batu Pelangi Indonesia, Sulawesi, Bangka
  • Oct 29 
    [ Dive site ] Tanjung Arus Indonesia, Sulawesi, Bangka
  • Oct 28 
    [ Photo ] Club 54 Tanzania, Pemba, Pemba North. More corals of Club 54
  • Oct 28 
    [ Photo ] Club 54 Tanzania, Pemba, Pemba North. Corals of Club 54
  • Oct 28 
    [ Dive site ] Club 54 Tanzania, Pemba, Pemba North
  • Oct 28 
    [ Dive site ] Lighthouse Tanzania, Pemba, Pemba North
  • Oct 24 
    [ Dive site ] Crab Wall Indonesia, Sulawesi
  • Oct 22 
    [ Dive site ] Pasir Puth Indonesia, Sulawesi
  • Oct 22 
    [ Dive site ] Sabora 1 Indonesia, Sulawesi, Bangka

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    [ Info ] Secured navigation Wannadive is now only available thru secured (SSL/HTTPs) navigation. Feel free to report any bugs or wired behavior while browsing/contributing to the dive site atlas and/or thru the Android application.
  • Jul 09 
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  • Dec 20 
    [ Info ] Wannadive è avaiable in italiano! Hi, Wannadive è avaiable in italiano! Today we are very happy to announce that Wannadive interface is available in Italian. We would like to thanks the following translators for their help and great Christmas gift! * Dave Noise (from Wannasurf) * Riccardo Ghetti (from Wannadive) * Lorenzo Facchin (from Wannadive) All Italian divers can now switch to Italian language by using the language selector at the top of Wannadive pages. Enjoy! We wish you a merry Christmas. WD Team

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