Upper Lagoon (lake) in Groton, CT offers boat rentals, scenic tours, and lakeside dining experiences for tourists and locals.
Operator computes a Health score every night at 2 am HST. It is the one number that tells you if this shop is winning, losing, or steady. Here is how Upper Lagoon broke down on Apr 27, 2026.
Operator ranks every lake in Groton every night at 2 am HST using reviews, response rate, and local market share.
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