Twin Tunnels

Central Province, Nggela Sule, Solomon Islands, Solomon Islandscave35 m max

Conditions & tides

Twin TunnelsNggela Sule

Fair · 4/5

conditions visualisation

Fair4/5

Some chop right now — best window today 11 AM–6 PM.

Wind11 kn SE

Current~0.4 kn WSW · model

Swell

0.2 m · 4s · ESE

Water

29 °C

Max depth

35 m

Conditions through the day

7 AM7 PM

Calmest current near slack — 22:15 & 08:45 local

Sunrise 05:48 · Sunset 18:17 local

Show details

Tide · local

Outlook — select a day for full conditions

On-face swell 0.1 m — the component of the swell aimed at this site’s exposed face. Current is a regional model value (Copernicus, ~9 km grid) — a guide to the area, not a precise reef measurement. Imagery © Esri · not depth or visibility.

Scored by DiveConnect's site-physics model

Marine forecast via Copernicus Marine. Score is a rule-based guide from swell/wind vs. the site's exposure — always dive your own assessment.

Dived here today? How were conditions vs. what we showed?

About this site

Twin Tunnels is a large seamount in the middle of the channel between Guadalcanal and the Florida Islands in the Solomon Islands. The site is named for two tunnels that cut into the seamount, and its bottom type is listed as cave.

The two tunnels drop vertically straight down from 12 metres and exit in a cave at 35 metres, which is the deepest point of the dive. Swimming out of the cave you reach the sheer wall of the seamount.

Schools of fusiliers gather along the wall, with grey reef sharks cruising by. The site is also home to some amazing coral, cuttlefish, octopus and mantis shrimp, plus schools of snapper, other tropical fish and an array of anemonefish.

AI-written site guide