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Two scuba divers capturing the vibrant marine life near an underwater wreck in crystal clear waters.
📷 Leonardo Lamas · Pexels

Batu Dalam

3.5 — based on 14 community signals
4.3 12 species 33 contributors

Batu Dalam is an Indonesian dive site with year-round potential and 12 recorded species observations, though full site details remain sparse.

⭐ Best for intermediate divers.

updated 4 months ago
Macro hotspotPhotoFriendlyBleachingRisk

At a glance

Activity
dive
Best months
Year-round
Marine life
Manta ray

Map

This spot POIs Airport Nearby spots
Batu Dalam location map © Google · Map data © Google, contributors
Open in Google Maps

Conditions today

Conditions

Open-Meteo
Wind
7.1 kn
Wave
0.3 m
Water
28.4°C
N E S W
Wind direction (7d)
Primary: SSE (34%)
Now: SSE (157°)
Tide (7 days)
range: 0.95m

Next: Low at 04:00 (+0.35m)

+1.0 m0 m+0.1 m
▼ 04:00 · +0.35m ▲ 08:00 · +0.41m ▼ 14:00 · +0.28m ▲ 22:00 · +0.74m
Sat 19Sun 20Mon 21Tue 22Wed 23Thu 24Fri 25
UV8.65 · very high Air PM2.522 · moderate 06:08 18:15
Day Wind Wave UV Rain
09-19 13.2 0.38 9 0mm
09-20 12 0.4 9 0mm
09-21 12.8 0.42 9 0mm
09-22 11.8 0.4 9 0mm
09-23 9.9 0.22 9 0mm
09-24 9.8 0.22 9 1mm
09-25 6.5 0.22 9 0mm
⚠ Coral bleaching: Watch — favorable conditions
DHW: 1.6°C-weeks · NOAA Coral Reef Watch

About this spot

Batu Dalam sits in Indonesian waters as a dive destination with modest documentation. The site hosts at least 12 species observations logged by divers, suggesting decent marine life diversity for the region. Community videos provide visual reference, though specifics on depth, visibility, and seasonal conditions aren't yet widely published. The site operates outside a marine protected area, which shapes access and management differently than MPA sites. Coral bleaching monitoring suggests ongoing attention to reef health—a factor worth checking before your visit, as conditions can vary seasonally. Year-round diving is possible, though local knowledge will help you plan the best timing for your goals. Batu Dalam appeals to divers seeking less-crowded Indonesian sites with an element of local discovery. Water conditions, marine life encounters, and difficulty level are best confirmed through recent trip reports or local operators familiar with current conditions. The community video record indicates visiting divers have documented their dives, so checking recent footage can give you a realistic preview before committing to a trip.

📖 Guide: Diving in Indonesia: 323 Sites, Mantas to Micro-critters

Best months

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Marine life

Manta ray

Dive types

Reef

Trip essentials

Everything you need before you pack — checklist, sun, logistics.

Trip checklist

  • 🛂 Visa-free or visa-on-arrival
  • 📜 C-card + dive insurance (DAN)
  • 📔 Dive logbook
  • 🧴 Reef-safe sunscreen SPF 50+
  • 🔌 Plug type C/F · 230V adapter
  • 💊 Seasickness meds + ear drops
  • 📱 Offline maps + emergency contact

Quick facts

  • 🌓 Moon First quarter · 47%
  • GPS
Sustainability disclosures
🌍 CO2 footprint LHR ↔ 12732km · ~2928kg · €53

From your departure country

United States
Origin score: 54/100
  • Visa: Visa on arrival · 30 days max
  • Flight: 12h · direct
  • Jet-lag: 12h east · 8 days recovery

FAQ

When is the best time to dive Batu Dalam?

Year-round diving is possible. Local conditions vary, so check recent trip reports and seasonal patterns specific to the site before booking.

What's the depth and difficulty at Batu Dalam?

Specific depth and difficulty ratings aren't widely documented. Contact local operators or review community reports to understand current conditions and required experience level.

What marine life might I see?

At least 12 species have been recorded here. Community videos show what divers have encountered; reviewing those will give you realistic expectations for your dive.

Do I need permits or special access to dive here?

Batu Dalam is not in a marine protected area, so standard Indonesian diving rules apply. Check current local regulations and arrange with a reputable operator before diving.

Recently spotted by divers

iNaturalist →

Verified marine species observations

56 records · 50 species · sources: OBIS, GBIF

Phyllodesmium poindimiei

ハナビラミノウミウシ
Gastropoda · Myrrhinidae
OBIS
Last seen:
12 Oct 2017
×1records
Depth:
15 m

Nembrotha

Gastropoda · Polyceridae
OBIS
Last seen:
14 Dec 2016
×2records
Depth:
12–14 m

Nembrotha livingstonei

トウモンリュウグウウミウシ
Gastropoda · Polyceridae
OBIS
Last seen:
14 Dec 2016
×1records
Depth:
12 m

Tenellia yamasui

フトガヤミノウミウシ
Gastropoda · Trinchesiidae
OBIS
Last seen:
14 Dec 2016
×1records
Depth:
12 m

Notobryon wardi

ユメウミウシ
Gastropoda · Scyllaeidae
OBIS
Last seen:
13 Dec 2016
×1records
Depth:
13 m

Goniobranchus fidelis

フジナミウミウシ
Gastropoda · Chromodorididae
OBIS
Last seen:
14 Jan 2016
×1records
Depth:
8 m

Siphopteron tigrinum

キマダラウミコチョウ
Gastropoda · Gastropteridae
OBIS
Last seen:
14 Jan 2016
×1records
Depth:
6 m

Chromodoris lineolata

ホソスジイロウミウシ
Gastropoda · Chromodorididae
OBIS
Last seen:
14 Jan 2016
×1records
Depth:
10 m

Hypselodoris tryoni

マダライロウミウシ
Gastropoda · Chromodorididae
OBIS
Last seen:
14 Jan 2016
×1records
Depth:
10 m

Doriprismatica atromarginata

キイロウミウシ
Gastropoda · Chromodorididae
OBIS
Last seen:
12 Jan 2016
×1records
Depth:
6 m

Goniobranchus albonares

ボンボリイロウミウシ
Gastropoda · Chromodorididae
OBIS
Last seen:
10 Jan 2016
×1records
Depth:
15 m

Phyllidia varicosa

タテヒダイボウミウシ
Gastropoda · Phyllidiidae
OBIS
Last seen:
10 Jan 2016
×1records
Depth:
15 m

Data: 187,991 observations from OBIS (Ocean Biodiversity Information System) and GBIF (Global Biodiversity Information Facility). CC-BY 4.0.

See this spot in action

YouTube videos — click to play.

Macro diving sekotong lombok - batu putih

Divernesia Dive Resort

Dive Batu Batu

mumwheresmypassport JessandJoe
💬 2 top comments
  • Amazing!!!

    @Mmmmeow · 👍 0
  • Looks amazing! Are most of these footage taken around the island or were they taken during a diving trip far from the island?

    @phuong-thybouzinac5357 · 👍 0

DIVING di Hot Spring Batu Lompa Tulehu

Ambon Damsel (Diving Community )
wind peaks Jul-Feb-Aug, calmest Apr-Jun-Nov.

5-year monthly climate

60 samples
0 5 10 15 20 25 JFMAMJJASOND
p25–p75 range Median Wind (kn) Air (°C)
Visibility (month-by-month)
Best: Mar (100/100) Worst: Jun (0/100) Now: Sep (27/100) NOAA MODIS Aqua · 5y mean

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