Gamat Bay dive site

Nusa Penida

Gamat Bay Diving

Sheltered shallows can be mild, but current at the bay mouth and adjoining channel can become strong and complex. The guide selects the route and profile for the group, tide and surface conditions.

Depth range
5–40 m
Access
Boat
Environment
Coral bay, Reef slope, Drift, and Macro
Experience level
Beginner to Advanced, condition-dependent

About Gamat Bay

Gamat Bay is a coral bay, reef slope, drift dive in Nusa Penida, with a working depth range of approximately 5–40 m. The site is known for hard and soft corals, nudibranchs, frogfish, scorpionfish, and turtles. Conditions remain variable, so the route, maximum depth and suitability are confirmed by the local guide on the day.

Availability notice

Conditions-dependent dive. Final operation and diver suitability are determined after the day-of-dive current, weather and experience assessment.

Site highlights

  • Coral bay, Reef slope, Drift, and Macro profile
  • Usable depth range from approximately 5 to 40 m
  • Potential encounters include hard and soft corals, nudibranchs, frogfish, and scorpionfish
  • Sheltered shallows can be mild, but current at the bay mouth and adjoining channel can become strong and complex

Before you dive

Recommended certification

Open Water for a protected shallow profile in mild conditions; Advanced Open Water or equivalent for the deeper slope or drift

Local guide recommended

Explore with a local guide familiar with the site and its entry and exit points.

Diving conditions & best time to visit

Water temperature
20–29 °C
Visibility
10–25 m

Sheltered shallows can be mild, but current at the bay mouth and adjoining channel can become strong and complex

Best months to dive

Year-round for reefs and manta encounters when conditions permit; roughly July–October for the strongest seasonal chance of mola mola, with colder water and thermoclines.

Diving is possible year-round when daily sea state and tides permit. Cooler thermoclines and the main mola mola observation season are generally June or July through October, while manta rays may be present year-round; wildlife encounters are never guaranteed.

Conditions may change

Typical conditions can vary on the day of your dive. Confirm current conditions with the dive team before entering the water.

Marine life & activities

  • Hard and soft corals
  • Nudibranchs
  • Frogfish
  • Scorpionfish
  • Turtles
  • Reef sharks
  • Trevally
  • Seasonal mola mola
Snorkeling Freediving

Access & safety

Entry & Exit

Boat dive into or beside Gamat Bay; entry and direction vary with current

Boat departure point
Nusa Penida local boat departure point
Boat travel time
10–35 min

Safety notes

The bay’s appearance can hide strong current outside. Follow the guide’s turn point, avoid being swept into the channel and use an SMB for boat pickup.

Dive tips

  • Follow the local guide’s site- and tide-specific briefing.
  • Agree a maximum depth within certification limits; the published site range is 5–40 m.
  • Maintain neutral buoyancy and avoid contact with coral, artificial structures and the seabed.
  • The bay’s appearance can hide strong current outside. Follow the guide’s turn point, avoid being swept into the channel and use an SMB for boat pickup.
  • Treat wildlife encounters as possible, never guaranteed, and give animals space.

Underwater photography

A flexible setup works best: use a macro lens for small subjects on sand, rubble and coral, or wide angle for the broader reef structure. Maintain stable trim, avoid stirring sediment and never move or touch wildlife for a photograph.

Site map & location

Gamat Bay dive site planning map

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