Sketching at Lake Cochituate

I have visited Lake Cochituate state park in Framingham, Mass. several times this summer for sketching. There is a lot of activity including the beach area with people on the sand or in the water, lifeguards under their bright orange and white umbrellas, the shapes of kayaks and sailboats from many viewpoints, the treeline across the lake and the small green boathouse in a pale green color that is challenging to capture.