The Arch
Protected Area
Canal Luis Peña Natural Reserve
Why dive here
With 493+ marine species recorded in the area - including barracuda, blacktip reef sharks, bull sharks, dolphins and eagle rays - The Arch offers some of Fajardo & East Coast's richest cave diving. Water ranges 27-30°C, warmest August, September, October.
The Arch, off Fajardo, is a pretty straightforward dive, ideal for those new to overhead environments. We drop to around 22 meters, right at the opening of a sizable swim-through. Inside, it's open enough that you’re never truly in the dark, with ambient light usually filtering through from both ends. Look out for the usual Caribbean suspects sheltering in the nooks – we often spot lobsters tucked away and sometimes a nurse shark snoozing on the sand below the arch itself. It’s a good spot to build confidence, without any strong currents to contend with.
Typical The Arch Dive Profile
Illustrative profile based on site depth and type. Actual dive profiles vary - always follow your dive computer and training.
Safety Notes
Depth of 22m - Advanced Open Water certification recommended.
Overhead environment - never enter without proper cave/cavern training, redundant equipment, and a guideline.
Always perform a 3-minute safety stop at 5m before surfacing.
Nearest Dive Centres to The Arch
Dive shops near The Arch
Culebra Divers
Black Beard Sports
Sea Ventures Dive Center
GypSea Charters
Reviews for The Arch
Conditions
Ocean conditions, forecast and tides for The Arch
The Arch Ocean Conditions
Monthly averages for The Arch, sourced from Open-Meteo marine data - nearest station: Open-Meteo marine grid (18.36, -65.51) (6km away)
October Averages
Sea Temperature
30°C
87°F · Range: 28.8–31.3°C
Air Temperature
27°C
81°F
Wind Speed
4.43 m/s
8.6 knots
Atmospheric Pressure
1013.3 hPa
Based on 4 years of monitoring data · Data sources: Open-Meteo marine data
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