25 Apr 2023

Good morning!

This is Komba, an active volcano!

It used to erupt every 10 minutes or so, just small spurts, but now it’s just steaming:


Dive #25 – Komba Timur

Our first dive will be off the corner of the volcano, where the seascape alternates between reef and rocky spills:

Map by Nora Niggs

Ovalspot butterflyfish, swimming out of view:

Giant clam:

A young Phyllidiella pustulosa:

Elysia ornata:

Signalfin(?) goby- these guys blend into the rubble quite well!

A pair of Pennant bannerfish:

Another entry for nudibranch vs coral:

Answer: nudibranch! Phyllodesmium briareum, I think.

Anemonefish in a knobby anemone:

That speck of debris ruined one of the few decent shots I managed to get of a soldierfish:

Threespot dascyllus:

Crinoid squat lobster:

Crinoid shrimp:

A Slantbar(?) goby:

Again, I was always a split-second too late to catch his helper shrimp 🙁

Pennant bannerfish:

Believe it or not, this lumpy, velvety blue fellow is a nudibranch!

I was photographing the guy above when my guide signaled me that he found another:

Coriocella nigra:

A little blenny hiding in his hole:


Dive #26 – Kombastic

Similar topography to the first dive, just around the corner:

Map by Nora Niggs

Juvenile Freckled hawkfish:

they become less red as they get older

Pennant coralfish:

A grinning lizardfish:

Two wire coral shrimps!

Princess anthias:

Scythe triggerfish:

Princess damselfish:

Yellowbelly damselfish:

Brown tang:

Regal angelfish:

Coral grouper being cleaned:

Peacock razorfish (initial phase):

Redtoothed triggerfish:


During lunch and our surface interval, the boat drove around to the front of the volcano so we could see it smoldering:

It would be cool to see it erupting (but just small, safe-to-watch-from-the-boat, eruptions):

But still neat regardless!


Dive #27 – Kombastic Corner

Basically, the site between the two morning sites 🙂

Map by Nora Niggs

Reticulated sandperch:

Blackbelt hogfish:

Sixband grouper:

Iridescent cardinalfish:

One of the whitest Phyllidiella pustulosa I’ve ever seen:

usually they’re more pink-ish

Goniobranchus geometricus:

another new-to-me nudibranch!

Hello there Mr. Moray eel!

Eyestripe triggerfish:

normally when I see triggerfish, their dorsal fin is flattened, but this guy’s was open and more colorful than I expected!

A pair of Humpback red snapper:

Goatfish!

I saw these guys almost every day, but they were so skittish!

Juvenile Oriental sweetlips, scooping up sand in his mouth:

Neon damselfish:

Oh, this Yellow-spotted scorpionfish was deep inside this coral and did not want to be photographed- I ended up popping off one of my strobes and manually holding it where I needed the light to go:

Redfin anthias party:


A few last looks at the volcano as we sailed away:

Farewell, volcano!

And a few more views as the sun sets:

And another night spent sleeping beneath the stars!

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