FOR SEEING SEALS - Seals have been basking on the barrier island beaches off Chatham for at least as long as people have been there to watch them. Thousands of the pinnipeds swim in the shallows and haul out to bask in the sun on sand bars and (when people are far enough away) along the beach. Swimmers often spot them congregating on sand bars off Chatham Lighthouse Beach; haul-outs on the beach occur farther south where the sands continue toward Monomoy. They are wild animals, so keep your distance. Theres limited parking at Chatham Lighthouse Beach, but the entrance to the beach is only a half-mile walk from downtown Chatham.