Neptune Memorial Reef
Protected Area
Half Moon Underwater Archaeological Preserve
Why dive here
With 87+ marine species recorded in the area - including bull sharks, dolphins, hammerhead sharks, seahorses and sea turtles - Neptune Memorial Reef offers some of Florida Keys's richest reef diving. Water ranges 19-32°C, warmest July, August, September.
Diving Neptune Memorial Reef feels a bit like exploring an ancient, sunken city. It’s an artificial reef, really, designed as an underwater mausoleum, which sounds a bit morbid but it’s actually quite serene. We’ve found it’s a pretty easy dive, shallow at just 14 meters, making it ideal for newer divers or those looking for a relaxing second dive. You navigate through columns and arches, often seeing angelfish and snapper flitting around the structures, with the occasional barracuda cruising by. It’s certainly unique, offering something different from a natural coral reef.
Typical Neptune Memorial Reef Dive Profile
Illustrative profile based on site depth and type. Actual dive profiles vary - always follow your dive computer and training.
Safety Notes
Always perform a 3-minute safety stop at 5m before surfacing.
Nearest Dive Centres to Neptune Memorial Reef
Dive shops near Neptune Memorial Reef
Divers Paradise
Juliet Sailing and Diving
ACE DIVING
Grove Scuba
Underwater Unlimited
Austin's Dive Center
Reviews for Neptune Memorial Reef
Conditions
Ocean conditions, forecast and tides for Neptune Memorial Reef
Neptune Memorial Reef Ocean Conditions
Monthly averages for Neptune Memorial Reef, sourced from NOAA NDBC + Copernicus Marine (EU) - nearest station: 8725520 - Fort Myers, FL (28km away)
October Averages
Sea Temperature
27°C
81°F · Range: 20.9–31.1°C
Air Temperature
26°C
79°F
Current Speed
0 cm/s
Direction: S (180°)
Salinity
35.98 PSU
Wind Speed
2.7 m/s
5.2 knots
Atmospheric Pressure
1014.5 hPa
Based on 5 years of monitoring data · Data sources: NOAA NDBC + Copernicus Marine (EU)
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