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Turtle Alley
Dive site · United States
Advanced divers and up
Is it worth the trip?
83Good out of 100 for your dates
Best on Sun 8: Sea 0.6 m, Visibility over 30 m, Water 26 °C
Mon 2 · 81 out of 100
- Sea
- 0.7 m
- Wind
- 16 kn
- Gusts
- 22kn
- Air
- 26°C
Tue 3 · 83 out of 100
- Sea
- 0.6 m
- Wind
- 15 kn
- Gusts
- 19kn
- Air
- 26°C
Wed 4 · 82 out of 100
- Sea
- 0.6 m
- Wind
- 16 kn
- Gusts
- 20kn
- Air
- 26°C
Thu 5 · 81 out of 100
- Sea
- 0.7 m
- Wind
- 15 kn
- Gusts
- 20kn
- Air
- 26°C
Fri 6 · 83 out of 100
- Sea
- 0.7 m
- Wind
- 15 kn
- Gusts
- 19kn
- Air
- 26°C
Sat 7 · 82 out of 100
- Sea
- 0.7 m
- Wind
- 16 kn
- Gusts
- 22kn
- Air
- 25°C
Sun 8 · 84 out of 100
- Sea
- 0.6 m
- Wind
- 14 kn
- Gusts
- 19kn
- Air
- 26°C
Tap a day for sea, wind and water. Full forecast
Forecast: next 10 days
Full forecast- Sun 183, good
- Mon 281, good
- Tue 383, good
- Wed 482, good
- Thu 581, good
- Fri 683, good
- Sat 782, good
- Sun 884, good
- Mon 984, good
- Tue 1086, good
The site in five facts
- Down to 14 mits deepest
- From a boathow you get in
- Advancedand up
- Water 26 °C3 mm wetsuit
- Faces SWswell 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 Advanced divers and up, as a dive guide states it. Scored for Advanced divers.
| Day | Score | Sea | Wind | Gusts | Air |
|---|---|---|---|---|---|
| Sun 1Nov | 83, good | 0.6 m | 2 kn | 6kn | 26°C |
| Mon 2Nov | 81, good | 0.7 m | 16 kn | 22kn | 26°C |
| Tue 3Nov | 83, good | 0.6 m | 15 kn | 19kn | 26°C |
| Wed 4Nov | 82, good | 0.6 m | 16 kn | 20kn | 26°C |
| Thu 5Nov | 81, good | 0.7 m | 15 kn | 20kn | 26°C |
| Fri 6Nov | 83, good | 0.7 m | 15 kn | 19kn | 26°C |
| Sat 7Nov | 82, good | 0.7 m | 16 kn | 22kn | 25°C |
| Sun 8Nov | 84, good | 0.6 m | 14 kn | 19kn | 26°C |
| Mon 9Nov | 84, good | 0.6 m | 14 kn | 19kn | 25°C |
| Tue 10Nov | 86, good | 0.6 m | 13 kn | 17kn | 25°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 NovLow 00:58 −0.2 mHigh 09:04 +0.3 mLow 16:59 −0.2 mHigh 22:36 −0.0 m
- Mon 2 NovLow 02:48 −0.1 mHigh 10:13 +0.3 mLow 17:39 −0.2 mHigh 23:54 +0.1 m
- Tue 3 NovLow 04:43 −0.1 mHigh 11:16 +0.3 mLow 18:13 −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.
Best time to go
No month stands out
Good diving days in a typical week, each month, for Advanced divers, from 2016 on (ERA5 history scored the same way).
- Jan6of 7: a trip from Sat 2 Jan
- Feb6of 7: a trip from Sat 6 Feb
- Mar7of 7: a trip from Sat 6 Mar
- Apr7of 7: a trip from Sat 3 Apr
- May7of 7: a trip from Sat 1 May
- Jun7of 7: a trip from Sat 5 Jun
- Jul7of 7: a trip from Sat 3 Jul
- Aug7of 7: a trip from Sat 7 Aug
- Sep7of 7: a trip from Sat 4 Sept
- Oct7of 7: a trip from Sat 2 Oct
- Nov6of 7: a trip from Mon 2 Nov
- Dec6of 7: a trip from Sat 5 Dec
Tap a month to see this spot for a trip then.
Typical, not a forecast: the sea and the mean wind of each day, with no gusts or rain in the history.
Map
the site, its town, photos
Turtle Alley on Google Maps · Directions
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 Turtle Alley
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More diving near here
5 places
- Turtle Canyon 0.3 km away
- Corsair Plane Wreck 3.6 km away
- San Pedro Wreck 3.7 km away
- Sea Tiger Wreck 3.8 km away
- YO-257 Wreck 3.9 km away
About
the place in full, sources, credits
About Turtle Alley
A reef dive. It goes down to 14 m. You get in from a boat. It suits Advanced divers and up, as a dive guide states it. The coast faces SW: swell from the SW reaches it, and wind from the NE blows out to sea. 4 dive centres or shops within 10 km, the nearest 1.3 km away. The sea is about 25°C in January, its coldest month (3 mm wetsuit), and 27°C in August, its warmest (3 mm wetsuit). The town to stay in is Honolulu. Within 5 km we also list 22 surf spots, 3 wind sports spots and 5 dive sites.
- What it is Reef.
- How deep Down to 14 m.
- Getting in From a boat.
- Who it suits Suits Advanced divers and up, as a dive guide states it.
- Dive centres 4 dive centres or shops within 10 km, the nearest 1.3 km away.
Water about 26°C: 3 mm wetsuit. Typical sea temperature for the time of year, not a forecast.
Visibility over 30 m. Typical for the time of year, estimated from ten years of NASA satellite water clarity, not a forecast. Clearest in Apr, May, Jul and Oct (over 30 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$1,140–US$2,160 each
about US$1,140–US$2,160 each · 6 nights, 2 sharing: flights, taxi, 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
| What | How we worked it out | Each |
|---|---|---|
| Flights | return ORD to HNL, estimated from distance and season, 2 airlines on the route, with a hold bag | about US$476–US$985 |
| Taxi | airport and back, shared | about US$20–US$40 |
| Stay | 6 nights, a mid-range double, shared | about US$301–US$502 |
| Food | 7 days eating out | about US$342–US$636 |
| Total | about US$1,140–US$2,160 |
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: Honolulu
6 min by car · 51 places to stay
about US$114/nightcountry average
About Honolulu its beds, food and every spot near it
About US$114 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 12h
About 12h door to door from Chicago
Fly ORD → HNL, direct, then 30 min by road
Flights ORD → HNL on your dates · Skyscanner
An estimate, one way; the journey never changes the score.
In the water
Dives and courses in Honolulu · GetYourGuideDive gear hire in Honolulu · GetYourGuide
Dive centres nearby
Hanauma Bay Dive Tours 1.3 km
Ocean Therapy Scuba 4.2 km
Trident Adventures 4.3 km
Hawaiian Diving Adventures 6.2 km
Reef Pirates Diving 14 km
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
Animals divers and surveys have recorded within 2 km of this site in the last 15 years. A record says someone saw it here, not that you will.
Lavender Tang Acanthurus nigrofuscus
Seen in 24 records, mostly Jun to Aug.
Boomerang triggerfish Sufflamen bursa
Seen in 20 records, mostly Jun to Jul.
Saddle wrasse Thalassoma duperrey
Seen in 15 records, mostly Jun to Aug.
Pycnochromis vanderbilti
Seen in 13 records, mostly Jun to Jul.
White-spotted Puffer Canthigaster jactator
Seen in 11 records, mostly Jun to Aug.
Rhinecanthus rectangulus
Seen in 11 records, mostly Jun.
Clown Tang Naso lituratus
Seen in 10 records, mostly Jun to Aug.
Gendarme Fish Acanthurus olivaceus
Seen in 9 records.
Two-spot wrasse Oxycheilinus bimaculatus
Seen in 9 records.
Banded Goatfish Parupeneus multifasciatus
Seen in 8 records.
Johnston Island Damsel Plectroglyphidodon johnstonianus
Seen in 8 records.
Kihikihi Zanclus cornutus
Seen in 8 records.
Records: OBIS (Ocean Biodiversity Information System, IOC-UNESCO), from the datasets named here, CC0 and CC BY records only. Names: WoRMS, through OBIS; common names from Wikidata. Largest datasets here: NOAA Pacific Islands Fisheries Science Center, Ecosystem Sciences Division, National Coral Reef Monitoring Program: Stratified random surveys (StRS) of reef fish in the U.S. Pacific Islands; A photographically-vouchered global citizen science dataset of sea slugs (Mollusca: Heterobranchia) from the SEASLUG.WORLD platform since 2015. Credits
This week: visibility about 25 m, greener than usual (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 no free forecast gives. Ask a dive centre before you book.