10-18m
    Beginner
    St. Thomas & St. John, US Virgin Islands
    Cas Cay-Mangrove Lagoon Marine Reserve & Wildlife Sanctuary

    Cartanser Sr. Wreck

    Best months: Jan–Dec

    Protected Area

    Cas Cay-Mangrove Lagoon Marine Reserve & Wildlife Sanctuary

    Why dive here

    With 476+ marine species recorded in the area - including barracuda, blacktip reef sharks, dolphins, eagle rays and humpback whales - Cartanser Sr. Wreck offers some of St. Thomas & St. John's richest wreck diving. Water sits around 27°C.

    Marine lifeBarracuda, Blacktip Reef Sharks, Dolphins, Eagle Rays and Humpback Whales · 476+ species recorded
    Water27°C · warmest January, February, March
    CharacterWreck dive · max 10-18m
    StandoutExceptional marine biodiversity

    The Cartanser Sr. Wreck sits right in Charlotte Amalie harbour, which means it’s an easy boat ride out. We love this site for its accessibility and how much the wreck has given back to the local ecosystem. Dropping down to about 18 metres, you’ll quickly make out the freighter, broken into two main sections. What makes it a standout for us is the way the ship has transformed. The hold is open, letting you swim through and observe schools of Brown Chromis darting in and out of the shadows. Look for the resident Broom-tail Filefish, often seen camouflaged against the rust-coloured metal, or the Yellowhead Wrasse diligently picking through the crevices. We’ve spotted Spotted Trunkfish here more than once, just hanging out near the broken superstructure. It's a fantastic spot for newer divers to get a feel for wreck penetration without any serious overhead environments. The light penetration is excellent, illuminating the entire wreck and the fish life around it.

    Typical Cartanser Sr. Wreck Dive Profile

    5m10mSafety Stop0m10m 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.

    Today06:0518:4212h 37m daylightGolden hour 18:12

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    Conditions

    Ocean conditions, forecast and tides for Cartanser Sr. Wreck

    Cartanser Sr. Wreck Ocean Conditions

    Monthly averages for Cartanser Sr. Wreck, sourced from NOAA buoy data - nearest station: Open-Meteo grid (18.32, -64.9) (0km away)

    August Averages

    Sea Temperature

    27.08°C

    81°F

    Air Temperature

    27.54°C

    82°F

    Wind Speed

    8.86 m/s

    17.2 knots

    Atmospheric Pressure

    1014.9 hPa

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

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