2m
    St. Croix, US Virgin Islands
    Salt River Bay National Historic Park and Ecological Preserve

    CUMULUS

    Best months: Jan–Dec

    Protected Area

    Salt River Bay National Historic Park and Ecological Preserve

    Why dive here

    With 458+ marine species recorded in the area - including barracuda, eagle rays, humpback whales, nurse sharks and oceanic whitetip sharks - CUMULUS offers some of St. Croix's richest wreck diving. Water sits around 27°C.

    Marine lifeBarracuda, Eagle Rays, Humpback Whales, Nurse Sharks and Oceanic Whitetip Sharks · 458+ species recorded
    Water27°C · warmest January, February, March
    CharacterWreck dive · max 2m
    StandoutExceptional marine biodiversity

    Cumulus isn't your typical St. Croix dive, and we love that about it. This isn't a deep dive, not even close, topping out at a maximum of two metres. What it is, though, is a fantastic wreck for snorkelers and even freedivers looking to explore a piece of history right from the surface. The Cumulus, a motor vessel from 1959, went hard aground in 1977, carrying a cargo of construction equipment – think cranes, dump trucks, and a concrete pump. Today, those pieces of machinery are fused into a low-lying, broken-up hull. You'll see the skeletal remains of what was once a substantial ship. We particularly enjoy poking around the twisted metal, imagining the chaos as it settled. Schools of small grunts often shelter within the deeper pockets, and we've spotted some surprisingly colourful parrotfish grazing on the algae-covered structure. It's a shallow, sun-drenched site that’s perfect for a lazy afternoon; you can spend ages just floating above it, watching the light play on the rusting metal below. If you're looking for an easy, accessible wreck with a cool story, this is our pick.

    Typical CUMULUS Dive Profile

    Safety Stop0m2m max~60 min estimated bottom time

    Illustrative profile based on site depth and type. Actual dive profiles vary - always follow your dive computer and training.

    Safety Notes

    Wreck site - avoid penetration without wreck diving certification. Watch for sharp metal and entanglement hazards.

    Today06:0418:4012h 36m daylightGolden hour 18:11

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    Conditions

    Ocean conditions, forecast and tides for CUMULUS

    CUMULUS Ocean Conditions

    Monthly averages for CUMULUS, sourced from NOAA buoy data - nearest station: Open-Meteo grid (17.74, -64.86) (0km away)

    August Averages

    Sea Temperature

    27.04°C

    81°F

    Air Temperature

    27.34°C

    81°F

    Wind Speed

    7.02 m/s

    13.6 knots

    Atmospheric Pressure

    1014.6 hPa

    Based on 5 years of monitoring data · Data sources: NOAA NDBC

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