For tours of Diablo Lake and Ross Dam, call Seattle City Light's Skagit Tours (tel. 206/684-3030).

Want to track radio-collared mountain caribou? Stalk newts, frogs, and salamanders in Heather Meadows? Learn about Lummi Indian basketry? Delve into the mysteries of mycology? Hang with some bats? You can do any of these things if you sign up for the right class through the North Cascades Institute. Offering more than 60 field seminars each year, North Cascades Institute, 810 Wash. State Rte. 20, Sedro-Woolley, WA 98284-1239 (tel. 360/854-2599;, is a nonprofit educational organization that offers a wide range of courses each year. Many of the seminars are now held at the North Cascades National Park.

A variety of day trips operate in conjunction with the three passenger ferries of Lady of the Lake (tel. 509/682-4584; Tours include a popular bus ride to 312-foot Rainbow Falls ($7 adults, $4 children 6-11, free for children under 6).

Note: This information was accurate when it was published, but can change without notice. Please be sure to confirm all rates and details directly with the companies in question before planning your trip.