If you go
Getting there: The Alaska Rainforest Sanctuary is about eight miles south of Ketchikan on the South Tongass Highway. From the highway, turn left on Wood Road. The sanctuary is less than a mile down the road.
Restrictions: The tour is designed for those in good physical condition. Participants must weigh 80 to 250 pounds and be at least 10 years old.
Cost: $149 for cruise ship passengers by appointment during the week and $79 on Saturdays for all visitors.
For more information: Call (907) 225-5503.
Treetop tours elsewhere: At, find "Canopy Walkways and Access Towers from around the World" at the bottom of the screen for a clickable map with some links to tour providers. In the contiguous states, canopy walks through the treetops include those at Myakka River State Park in Sarasota, Fla., or (941) 361 6511; Big Mountain Resort, near Whitefish, Mont., or (406) 862-2900; and the Ecotarium in Worcester, Mass., or (508) 929-2700. Some U.S. canopy tours are summers only, so call ahead.

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