For boats
Location
18-41.451 S
/ 174-04.492 W
Mariner's
Cave is a cave on the west wall of the north end of Nuapupu Island,
a few miles SW of Neiafu. Unlike
Swallows Cave, which can be entered on the surface, the entry to Mariner's Cave
is 1 to 3 meters
underwater (depends on the tide), and you have to swim about 3 meters underwater to be
able to come up inside the cave. This
can be done as a snorkel or a dive.
The cave is
not visible above the water. You can go close to the island (on given position)
and jump into the water. The cave faces west, so the best time of day to make
this dive is in mid-afternoon or later, when the natural lighting is stronger
in the cave.
Once inside
the only light is the ethereal blue coming through the underwater entrance, and
the seal is so tight that when the swell rolls in, the water compresses the air
in the cave fast enough to produce an instant fog-out! As the swell ebbs, the air comes as instantly
crystal clear.
A
flashlight is useful, but not absolutely necessary in the afternoon.
Dive Profile
There are 2
entrances to Mariner's Cave. One is 5’-10’ (3m) down, accessible by
snorkeling. The other is at 40' down.
The best
dive plan is to go in the 10’
part, explore the cave, then into the deep area, and out the 40’ swim-through. There is a
big lobster in Mariner’s Cave near the 40' swim-through--look, don't molest!
When you
come out of the cave and turn left, there’s a nice wall. Proceed down the
wall. At about 30 minutes down the wall,
at 40’,
there is a sand patch, and there are 2 swim-through’s at about 40 feet. The first one takes you from 40' up to
20'. When you exit the first one, turn
right and see the 2nd one that goes back down from 20’ to 40’.
Keep going
a little longer and you end up in 20’
and finish the dive.
For crews
No informations about city and area.
Fees
No curiosities and other informations.