The Caribe Royale, venue for IETF 86, offers a complimentary shuttle from the hotel to Walt Disney World Theme Parks and evening shuttle service to Downtown Disney. The current schedule is posted here (please note the schedule can change without warning).
The Caribe Royale has also set up a Web site for IETF attendees and their companions to advance book different area activities. Please go here to see what they offer in terms of area activities for all ages.
Universal Studios Florida - Universal Studios Florida, Islands of Adventure featuring the Wizarding World of Harry Potter
Walt Disney World - Magic Kingdom, Epcot, Disney's Animal Kingdom, and Disney's Hollywood Studios
Legoland Orlando - interactive theme park for families with kids 2-12yo. LEGOLAND Waterpark opens for the season March 9, 2013.
Cirque du Soleil La Nouba show in Orlando - Downtown Disney, West Side
Harry P. Leu Gardens and House Museum - 50 acre Botanical Gardens in Orlando (NOTE: the Gardens is holding its annual Plant Sale on March 16 and 17)