The only place in the nation you can experience sleeping in some of the largest old-growth trees in the world, inside Oregon State parks. Bookable every day between May 1st and Sep 30th. Learn how to climb and sleep in tees that are 150-300ft tall, no experience is necessary. $699 for 2 people, $350 extra for the third person and each additional person. $200 extra for the two person Portaledge. $30 extra per person for breakfast and dinner.