5-20m
    Great Lakes, United States

    Boulton Reef

    Why dive here

    Boulton Reef lies in a species-rich stretch of Great Lakes, with 30+ marine species recorded in the area.

    Marine life30+ species recorded
    CharacterReef dive · max 5-20m

    Arrecife Los Ballenatos, or "The Whales Reef," is one of those Grand Cayman spots we keep coming back to. It’s a proper Caribbean wall dive, dropping away into the deep blue, but what we really love is the top of the reef. It’s relatively shallow, a comfortable 12-15 metres, and just explodes with colour. You’ll find big clusters of elkhorn coral reaching for the sun, and the light here is usually incredible, especially in the mornings. We often spot schools of French grunts and bluestriped snapper congregating under ledges, and sometimes a curious hogfish will swim right up to your mask. Look closely among the coral heads for little post horn squid, they’re masters of camouflage. We’ve also had some fantastic encounters with great barracuda here, just hanging motionless in the current, watching everything. This site is great for divers who appreciate the subtle beauty of a healthy reef top before venturing over the edge of the wall. It’s perfect for a long, relaxed dive, especially if you take your time exploring the shallower sections.

    Typical Boulton Reef Dive Profile

    5mSafety Stop0m5m 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.

    Today04:5218:4513h 53m daylightGolden hour 18:03

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    Conditions

    Ocean conditions, forecast and tides for Boulton Reef

    Boulton Reef Ocean Conditions

    Monthly averages for Boulton Reef, sourced from NOAA buoy data - nearest station: South Haven Light, South Haven, MI (20km away)

    August Averages

    Air Temperature

    21.5°C

    71°F

    Wind Speed

    4.3 m/s

    8.4 knots

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

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