Mares Pond
Protected Area
Cape and Islands Ocean Sanctuary
Why dive here
With 35+ marine species recorded in the area - including nurse sharks - Mares Pond offers some of New England's richest diving. Water ranges 4-19°C, warmest July, August, September.
Mares Pond is a freshwater dive that’s less about big pelagics and more about the small, often overlooked creatures. Expect to see plenty of freshwater fish like bass and perch, especially around the weed beds. It's a calm, easy dive, good for new divers looking to practice skills or for anyone wanting a relaxed fin kick without ocean currents. Visibility can vary, but it’s generally decent enough for enjoying the quiet stillness of an inland dive.
Safety Notes
Cold water this month (avg 15°C). Drysuit or thick wetsuit (7mm+) recommended.
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Conditions
Ocean conditions, forecast and tides for Mares Pond
Mares Pond Ocean Conditions
Monthly averages for Mares Pond, sourced from Open-Meteo marine data - nearest station: Open-Meteo marine grid (42.6, -70.6) (0km away)
October Averages
Sea Temperature
15°C
59°F · Range: 12.8–18.1°C
Air Temperature
10°C
50°F
Wind Speed
3.78 m/s
7.3 knots
Atmospheric Pressure
1017 hPa
Based on 4 years of monitoring data · Data sources: Open-Meteo marine data
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