
Chachacual Bay
Huatulco · Mexico
Chachacual is the most remote and pristine bay in the Huatulco biosphere reserve, accessible only by boat, with coral-encrusted rocky reefs sheltering resident hawksbill turtles and frequent visits from Pacific spotted dolphins. The bay's clear water and minimal current make it ideal for relaxed drift dives along bouldered slopes that tumble from 5 m to 25 m before giving way to sandy channels. Schooling jacks, king angelfish, and the occasional Pacific green turtle round out an encounter list that rewards patient observers.
Conditions
Depth
5 to 25 m
Open water and up
Current
Can be moderate
Can pick up on the edge
Visibility
8 to 15 m
Clearest in the calm season
Water
22 to 31°C
3mm wetsuit
Month by month
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Water (°C) | 23 | 22 | 23 | 24 | 25 | 27 | 28 | 28 | 28 | 27 | 25 | 24 |
| Vis (m) | 15 | 18 | 18 | 15 | 12 | 8 | 8 | 8 | 8 | 10 | 15 | 15 |
| Current | Gentle | Gentle | Gentle | Gentle | Moderate | Moderate | Moderate | Moderate | Moderate | Gentle | Gentle | Gentle |
Your chances of seeing each animal
Great Kiskadee
Last confirmed Jul 4, 2026 · 179 records
Almost always
Nearly every dive
Tropical Kingbird
Last confirmed Jul 4, 2026 · 58 records
Almost always
Nearly every dive
King Angelfish
Last confirmed May 1, 2026 · 36 records
Very likely
Most dives
Pacific Spotted Dolphin
Last confirmed May 29, 2026 · 42 records
Very likely
Most dives
Hawksbill Sea Turtle
Last confirmed May 18, 2026 · 6 records
Very likely
Most dives
Gear