Share your beautiful stories of the underwater world

Create a stunning logbook in no time, learn everything about your favorite species, inspire your friends and contribute to nature conservation.

  • App store en
  • Google play en

On the boat

  • Collect your memories easily thanks to the
    tortuba Logbook app.
  • Add the species you encountered to highlight your stories.
  • Between two dives, add notes and the other divers' signatures to your Logbook.

Back on land

  • Upload your pictures to enrich your logbook and help scientific communities evaluate and track marine populations.
  • Help identify photographed species and learn more about them.
  • Highlight the photos that best promote marine life, and get feedback about your photos from other divers.


How does it work?

  • Card 1
  • Card 2

Unidentified Fishy

Help the community identify the species!

Activity for
this picture

Number of

Number of
species suggestions

Identified Species

It's time to learn more about this species.

Support a species by "following" it,

learn where you can find it, and get updates about it.

Pick the photos
you find most appealing,

and that highlight the species the most.

We assemble all of that
for you in a logbook that you will enjoy reading and sharing.


  • Indonesia
  • #309
  • 21 m
  • 71 min

[ 06.05.2013 - 21:57 ]

On tuesday 7th, we were in Indonesia, to dive at a site called Laha. We entered the water at 6:57 with Jason, Jason, James, Nicole et Philippine.

The cruise is ending and after all those nights to arrive in the region of Ambon from Raja Ampat , we are determined to make the most of it and scrutinize the seabed with more attention than ever, looking for known and unknown creatures.

Having a guide almost guarantees not to return empty-handed, but it is even more satisfying to discover your own creatures behind a coral, buried in the sand or under a rock . Over the years we've learned a few tricks of those magicians, and we are familiar to some of their favorite covers. Nevertheless, most of the time we are playing ' Where's Waldo ' without knowing in advance what the character looks like, or what size it is; turns out it's really easy to miss the arm sized crocodile fish that's just below you when you are looking for nudibranchs the size of a nail.

Ambon is renowned for its "mucks dives" and I was quite confident that we would find interesting critters, especially with my favorite spotter Philippine, but I didn't really know what to expect... one thing's for sure, we were not disappointed!

2013 05 07 20  20img 3949

As we were going down, we stumbled upon a collection of fire urchins, and after some more looking the guide found us a couple of coleman shrimps on of of them.

They live in pairs (male & female) and clean up some space on top of the sea urchin with their claws . Once properly installed they feed on food particles captured by the spikes around.

2013 05 07 20  20img 3951
2013 05 07 20  20img 3957

With her eagle eye, Philippine spotted a seahorse the size of a hand side that everybody had missed. It floated upside down and its pattern resembled the bottom it laid upon, so it was easy to assume it was just another alga .

One diver was so excited by the discovery of a bamboo shark that he was heard screaming in his mask. This is the second time I crossed one, it's probably the least scary shark that is, with its small size and soft, rounded shapes.

2013 05 07 20  20img 3971
2013 05 07 20  20img 3992

The weedy scorpionfish belongs to those species that are both fascinating and disgusting. You'd rather not find yourself face to face with one of those without notice, but when you're lucky enough to encounter one, you're likely to spend a fair amount of time looking at it from every angle, with its natural pout, its excrescences and its surreal colors.

As I was looking for nudibranchs my eyes landed on a stretch of sand with a mini dune that looked strangely regular. I took a step back and followed this dune in both directions to find other strangely regular shapes, and it was then that its eyes appeared to me: a stingray was hidden under the sand.

Proud of this discovery, I could not resist to test Philippine by pointing at the area to see whether she would spot it too. More often than not, having someone pointing at a spot only slightly increase your chances to see the critter hidden there, unless they used sign language to tell you what kind of critter it is, and how big it is.

2013 05 07 20  20img 4000
2013 05 07 20  20img 3967
2013 05 07 20  20img 3950

A dive in such a place is likely to mean new nudibranch encounters, and indeed, I discovered 3 new species.

It's been a fantastic and peaceful dive, there was a lot of life, little trash, and we had the dive site for ourselves.

On this dive

Write your story, it's easy!

  • App store en
  • Google play en

Why tortuba?

tortuba's mission is to empower everyone with tools to create harmony between humans and nature.

"All it takes for evil to triumph is for good men to do nothing" - Edmund Burke

You have as much potential to change people's behaviour toward the Ocean as the most passionate of marine biologists, and tortuba will help you in that direction by reducing your efforts and maximizing your impact.

Your priviledged encounters with the underwater world during your dives represent as many opportunities to inspire people connected to you, to fill them with wonder and raise their interest for the Ocean. If they don't encounter the underwater world, then you can make the underwater world come to them, through your eyes and experiences.

Be the voice of those who don't have one, be the caring advocate and the inspirational artist who will strengthen collective consciousness of marine species and help everyone to naturally act in a spirit of conservation.

"How inappropriate to call this planet Earth when it is quite clearly Ocean." - Arthur C Clarke

ImageThe oceans cover 70% of our planet and host 50 to 80% of life on Earth, and yet only 1% of their surface is protected - while 12% of terrestrial surfaces are. We spend our time on Earth and easily forget that we are strongly dependent on healthy oceans.

We can't care about what we don't even know exists; and we can't care about something we know nothing of.

That's why tortuba strives to facilitate respectful encounters with marine species, to help divers reveal the best in those species, to increase understanding of ecosystems, and to highlight and share stories of their adventures.

This way, by strengthening their link to the Ocean, more people will measure the consequences of their daily acts over it and will know what to change to take part in Ocean conservation.

The Ocean can't be savaged just because it lies out of our sights.


  • Longitude181
  • Adip
  • Unoceandevie
May the fish be with you