My, oh my. What a wonderful day they'll have zipping along their own Fun Ride backyard zip line from Jungle Gyms Canada. The company provides complete ready-to-ship zip kits (and will also customize, if needed). Their smallest zip line runs 35 feet and deluxe versions run 90 feet long with maximum weights topping at 250 pounds. Who needs Costa Rica for a trip on a zip? Recommended for ages 5 and up.