Four state parks have reached capacity on Sunday morning.

Squantz Pond State Park in New Fairfield was the first to close to new cars as of 10:25 a.m., followed by Wadsworth Falls State Park in Middletown by 10:50 a.m., according to the Connecticut State Parks Twitter.

Miller’s Pond State Park in Durham filled to parking capacity by 11 a.m., Mount Tom State Park in Litchfield did so by 12:45 p.m. and Gardner Lake State Park did so around 2:40 p.m.

This leaves residents looking to cool off with fewer options on a day where several beaches in southwestern Connecticut are closed due to water quality concerns.

Byram Beach in Greenwich closed Sunday due to excessive rainfall, while swimming is prohibited at beaches in Westport, Norwalk and Fairfield because of a sewage leak that could have affected water quality.