Staying Home Sucks, home
Crystal Bay, Nusa Penida 2017-08-20 (1)
Crystal Bay. Photo: Magul, CC BY-SA 4.0, Wikimedia Commons

Crystal Bay

Dive site · Indonesia

Experienced divers only

Is it worth the trip?

78Good out of 100 for your dates

Home sucks

Every day scores the same

Each day of your trip, out of 100

Mon 2 · 78 out of 100

Sea
0.6 m
Wind
4 kn
Gusts
7kn
Air
27°C

Tue 3 · 78 out of 100

Sea
0.7 m
Wind
1 kn
Gusts
2kn
Air
28°C

Wed 4 · 78 out of 100

Sea
0.7 m
Wind
4 kn
Gusts
6kn
Air
28°C

Thu 5 · 78 out of 100

Sea
0.6 m
Wind
2 kn
Gusts
3kn
Air
28°C

Fri 6 · 78 out of 100

Sea
0.7 m
Wind
3 kn
Gusts
5kn
Air
27°C

Sat 7 · 78 out of 100

Sea
0.6 m
Wind
3 kn
Gusts
5kn
Air
27°C

Sun 8 · 78 out of 100

Sea
0.6 m
Wind
3 kn
Gusts
9kn
Air
27°C

Tap a day for sea, wind and water. Full forecast

Forecast: next 10 days

Full forecast
  1. Sun 177, good
  2. Mon 278, good
  3. Tue 378, good
  4. Wed 478, good
  5. Thu 578, good
  6. Fri 678, good
  7. Sat 778, good
  8. Sun 878, good
  9. Mon 978, good
  10. Tue 1079, good

The site in five facts

  • Down to 40 mits deepest
  • From a boathow you get in
  • Experienced / deepexperienced divers only
  • Water 29 °Crash vest or 1 to 2 mm
  • Faces Wswell from there reaches it

Full forecast

every day, every number

The score doesn't know currents, the visibility on the day or your certification.

Suits experienced divers only, as a dive guide states it. Scored for experienced divers.

Sea and wind forecast and score for each day at Crystal Bay
DayScoreSeaWindGustsAir
Sun 1Nov77, good0.5 m3 kn4kn28°C
Mon 2Nov78, good0.6 m4 kn7kn27°C
Tue 3Nov78, good0.7 m1 kn2kn28°C
Wed 4Nov78, good0.7 m4 kn6kn28°C
Thu 5Nov78, good0.6 m2 kn3kn28°C
Fri 6Nov78, good0.7 m3 kn5kn27°C
Sat 7Nov78, good0.6 m3 kn5kn27°C
Sun 8Nov78, good0.6 m3 kn9kn27°C
Mon 9Nov78, good0.6 m4 kn10kn27°C
Tue 10Nov79, good0.5 m2 kn5kn28°C

Sea is the waves near the site, in metres; wind and gusts in knots. "Boats in": gusts that keep dive boats in. More

Tide

  • Sun 1 NovHigh 00:52 +1.1 mLow 07:57 −1.0 mHigh 13:59 +0.2 mLow 19:15 −0.4 m
  • Mon 2 NovHigh 01:41 +0.8 mLow 08:58 −0.8 mHigh 15:13 +0.2 mLow 20:29 −0.3 m
  • Tue 3 NovHigh 02:52 +0.6 mLow 10:20 −0.6 mHigh 17:13 +0.2 mLow 22:45 −0.2 m

Local clock times; heights about mean sea level. On open coasts the times are usually within a quarter of an hour; in bays, estuaries and on the Gulf of Mexico they can be an hour or more out. Slack water, the safest time to dive where there is current, is about half an hour either side of each high and low. Tide: EOT20 global ocean tide model, Hart-Davis et al. 2021, DGFI-TUM (doi:10.17882/79489), CC BY 4.0. Times and heights computed by us. A model, not a tide table: check a local table before you go.

Forecast updated . It refreshes every three hours. Forecast data: ECMWF, DWD, Météo-France and NOAA, served by Open-Meteo.com (CC BY 4.0). Changed by us. Generated using E.U. Copernicus Marine Service Information.

Map

the site, its town, photos

Each place wears its best day on these dates: green good, amber fair, pale red poor, as the key says.

The map needs JavaScript. Every place on it is listed on this page, and each place's page links to Google Maps.

One finger scrolls the page; two fingers move the map. Pins are our own positions. Map OpenFreeMap, © OpenMapTiles, data © OpenStreetMap contributors.

Photos of Crystal Bay

Crystal Clear Bay
Photo: Tilonaut, CC BY 3.0, Wikimedia Commons
Secret Beach - 2015.03 - panoramio
Near Crystal Bay, 1 km away. Photo: rheins, CC BY 3.0, Wikimedia Commons
Red With A Hint Of Yellow
Photo: Tilonaut, CC BY 3.0, Wikimedia Commons

More diving near here

2 places

About

the place in full, sources, credits

About Crystal Bay

A reef dive. It goes down to 40 m. You get in from a boat. It suits experienced divers only, as a dive guide states it. The coast faces W: swell from the W reaches it, and wind from the E blows out to sea. 21 dive centres or shops within 10 km, the nearest 0.1 km away. The sea is about 27°C in July, its coldest month (3 mm wetsuit), and 29°C in January, its warmest (rash vest or 1 to 2 mm). The town to stay in is Lembongan. Within 5 km we also list 3 surf spots and 1 dive site.

  • What it is Reef.
  • How deep Down to 40 m.
  • Getting in From a boat.
  • Who it suits Suits experienced divers only, as a dive guide states it.
  • Dive centres 21 dive centres or shops within 10 km, the nearest 0.1 km away.

Water about 29°C: rash vest or 1 to 2 mm. Typical sea temperature for the time of year, not a forecast.

Visibility about 15 m. Typical for the time of year, estimated from ten years of NASA satellite water clarity, not a forecast. Clearest in Jan, Feb, Aug and Sep (about 20 m).

The score is the conditions only: the journey, the price and the partners never change it (how we score, how we earn).

Rough cost (estimate): about US$1,210–US$2,440 each

about US$1,210–US$2,440 each · 6 nights, 2 sharing: flights, hire car, stay, food.

Our estimate from typical public prices, not a quote: check the real prices before you book (where they come from). Prices are about, in US Dollar (USD): our pound figures at the European Central Bank's rate of 30 October 2026.

How we worked it out 
Rough cost per person for this trip
WhatHow we worked it outEach
Flightsreturn ORD to DPS, estimated from distance and season, changing at HKG, full-service airlines, with a hold bagabout US$965–US$2,010
Hire car6 days, sharedabout US$47–US$80
Stay6 nights, a mid-range double, sharedabout US$94–US$154
Food7 days eating outabout US$107–US$194
Totalabout US$1,210–US$2,440

Guided dives are not priced yet: we have no sourced price, so it is not in it. Prices from public sources, checked in 2026.

Where to stay: Lembongan

Closest

Lembongan

6 min by car · 305 places to stay

about US$33/nightcountry average

See 305 places to stay in Lembongan · Booking.com

About Lembongan its beds, food and every spot near it

About US$33 a night is our estimate of the country's average 2-star double room that month: not each town's price, and not a quote. Drives are estimates. Prices are about, in US Dollar (USD): our pound figures at the European Central Bank's rate of 30 October 2026.

Getting there: about 30h

About 30h door to door from Chicago

Fly ORD → DPS, changing at Hong Kong International Airport (HKG), then 1h 25m by road

An estimate, one way; the journey never changes the score.

In the water

Dive centres nearby

The nearest named dive centres and shops within 25 km, in a straight line; training agencies where the map states them. Listings, not a recommendation. Dive centres: © OpenStreetMap contributors (ODbL). Credits

What you might see

Too few open records near this site to list its animals. Ask a dive centre what you are likely to see.

This week: visibility about 10 m, about usual for the month (satellite plankton reading, 24 Oct). Estimated from the month's typical visibility and this week's satellite chlorophyll against the site's normal; heavy rain before a dive can still muddy it.

The current and the life no free forecast gives. Ask a dive centre before you book.