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Crystal Bay

Crystal Bay

Lesser Sunda Islands, Indonesia

Depth
Depth Icon

12m

Visibility
Visibility Icon

10m - 30m

Entry
Shore Entry Icon

Shore

Experience Level

Experienced


About Crystal Bay

Southwest of Nusa Penida, on the south side of Gamet Bay, lies Crystal Bay, a small bay with a rocky island in its centre. If you dive directly down you will reach the reef top at a depth of about 5 to 10 meters. The reef has a white sandy base and is coated with anemones and soft coral. On following the north side of the bay towards its corner you will reach a cave (at a depth of about 12 meters) which is home to some bats (the cave opens to the sky). Reef sharks also inhabit the cave. Once you have explored the cave you can continue along the wall and see the occasional lobster hiding in the hard coral on the wall. The bay is exposed to the swell, which causes up and down currents. You can see manta rays, eagle rays, white tip sharks, and leopard sharks when the current is present.

Crystal Bay Dive Info

Terrain & Features

Reef, Rock, Other

Entry Type

Shore

Max Depth

12m

Visibility Range

10m 30m

Experience Level

Experienced

Best Gas Mix

21%

O2

8% at 10m / 36%

O2
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Marine Life

  • White Tip Sharks
  • Leopard Sharks
  • Eagle Rays
  • Manta Rays
Weather Conditions

Water Temperature
Dive Operators near Crystal Bay

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Location

Dive Site Hazards

  • Hidden Depth Variations — Complex reef topography can conceal depth changes, leading to unintended profile variations.

  • Distraction from Marine Activity — High fish activity can distract divers and delay depth or gas awareness.

  • Rapid Surge Direction Changes — Surge near reef structures can reverse direction quickly, pushing divers sideways into unexpected areas.

  • Bubble Trapping Under Overhangs — Rock overhangs can trap exhaled bubbles, reducing visibility and causing disorientation.

  • Reflected Surge Patterns — Surge reflecting off rock faces can create irregular and unpredictable water movement.

  • Current Funnel Effect — Narrow gaps between rocks can accelerate water flow unexpectedly.

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