Grafton Ponds is best known for its mountain biking and cross-country ski trails. See the story I just wrote in this past Sunday’s Boston Globe. Yet, Director Bill Salmon is also happy to guide folks to his favorite local fly-fishing streams, mountain hikes, and coveted paddling spots. Tell him to take you to nearby Lowell Lake, whose hillsides are brimming with color this month. Backed by the Green Mountains, you’ll paddle around the perimeter watching turtles catching rays on floating branches, and, if Indian Summer weather prevails, jump into the refreshing water for your own version of a Vermont baptism.