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Three Try Dive students holding the descent line in clear blue water while their instructor guides them.

Home / Blog / Dive report, October 2026

Dive report:
October 2026

A rough September, a flat and clear October, a pair of filefish that will not leave Sail Rock, and our boat in the shipyard getting a new engine. Here is what the last few weeks have looked like.

By Boris Collado, lead instructor ·

The sea

From swell
to flat water

September
More swell
October
Flat and clear

These weeks have been a little unusual. September came with more swell than we expected, so some days were bumpier than usual on the way out.

October has turned it around. We get some rain, but the surface of the sea is flat, and the visibility underwater is even better than in September. If you are on the island now, this is a very good moment to get in the water.

A scrawled filefish hovering beside the wall of Sail Rock.

Scrawled filefish · Sail Rock

At Sail Rock

A pair of
filefish

The last whale shark was two weeks ago. Since then, a beautiful pair of filefish has been hanging around the rock on almost every dive.

Whale sharks come and go, and nobody can promise one. But a pair of filefish that turns up dive after dive is a small joy of its own. We have also added two new species to our marine life guide: Weibel's butterflyfish and the bluering angelfish.

The boat

A new engine
for the Rungworawan

Low season is when we look after the boat. The Rungworawan, whose name joins three Thai words, dawn, colour and radiant, is in a shipyard in Chumphon for a full refit:

  • A new engine
  • New paint
  • Safety guards at the back of the boat
  • A camera so the captain can watch divers going into the water without leaving the wheelhouse
  • New fittings on deck, including a rack for the tanks
The new engine being lowered into the boat on chains at the shipyard.
The new engine goes in
Two mechanics guiding the engine into the engine room.
Into the engine room
Workers fitting new parts on the back deck of the boat, with fishing boats on the river behind.
Work on the back deck

She will be back in November. November is monsoon time, though, so we will keep her in until Christmas, when people start to come back to the island. Until then we dive from a partner company's boat. The trips to Sail Rock carry on, with one change: this boat leaves at 8:00 instead of our usual 9:30.

In the water

Low season,
good company

It is quiet, but not empty. These weeks we have had first-timers on Try Dives, Ben on his Deep and Nitrox courses, Alexander finishing his Advanced Open Water, and a first aid course with CPR practice. Thank you all for letting us share your photos.

Three Try Dive students side by side in front of a rock wall, giving the OK sign.
Try Dive · first time underwater
Ben in a pink mask giving two thumbs up in the deep blue.
Ben · Deep & Nitrox
Alexander and his instructor smiling at the garden table after going over the exam.
Alexander · Advanced, exam done
Three Try Dive students holding the descent line together.
Try Dive · on the line
A student practising chest compressions on a CPR dummy.
First aid · CPR practice

Coming to
the island?

Send us your dates and we will tell you honestly how the sea has been and what is turning up at Sail Rock.

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