Echo Lake State Park. You don't have to be a rock climber to catch views from the 700-foot White Horse and Cathedral ledges. From the top you'll see the entire valley, including Echo Lake, which offers fishing, swimming, boating, and, on quiet days, an excellent opportunity to shout for echoes. 68 Echo Lake Rd., off U.S 302, Conway, NH, 03818. 603/356–2672. www.nhstateparks.org. $4. Memorial Day–mid-Oct., daily 9–sunset.