Grandma s Secret Garden
Protected Area
Conception Island National Park
Why dive here
With 362+ marine species recorded in the area - including barracuda, blacktip reef sharks, dolphins, dwarf minke whales and humpback whales - Grandma s Secret Garden offers some of Long Island's richest reef diving. Water ranges 26-30°C, warmest August, September, October.
Grandma’s Secret Garden, off Long Island, is a gentle coral reef dive. You'll find a mix of hard and soft corals here, providing shelter for smaller reef fish. It’s a good spot for a relaxed dive, especially if you enjoy exploring a healthy reef without strong currents.
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Conditions
Ocean conditions, forecast and tides for Grandma s Secret Garden
Grandma s Secret Garden Ocean Conditions
Monthly averages for Grandma s Secret Garden, sourced from Open-Meteo marine data + Copernicus Marine (EU) - nearest station: Open-Meteo marine grid (23.66, -74.95) (14km away)
October Averages
Sea Temperature
30°C
85°F · Range: 28–30.8°C
Current Speed
8.94 cm/s
Direction: NW (333.4°)
Chlorophyll-a
0.053 mg/m³
Very clear (oligotrophic)
Salinity
36.55 PSU
Based on 4 years of monitoring data · Data sources: Open-Meteo marine data + Copernicus Marine (EU)
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