Our local nature center just opened a new play space with a Fairy Grove theme. They had a Fairy and Gnome celebration to kick off the gran.
Use different height stumps/logs to create a climbing structure. Incorporate this into the bow of the boat somehow?
8 Easy and Affordable Kid-Friendly Backyard Ideas - thegoodstuff
let the children play: just add stones, logs, stumps and mounds - stump path
Posts about natural playground on Global Village Preschool
Mulch or playground chips make a nice play area. This is a cool backyard fort / playhouse made from doors.