Here's another cache that's aimed at family caching. Older kids can play too, but it's intended for the younger set.
Seabranch is a large natural area, on Hwy A1A, just south of of Port Salerno. There are many trails and areas to explore; it's well known for it's "sugar sand" paths, so be prepared for a slightly difficult hike. Bring water and dress for some mild bushwacking.
The cache is just off the North Loop trail; you'll find the trail about 500' east of the parking lot.
When placed this cache contained toy cars and a log. As usual, I forgot to include a pen, so please BYOP. Please don't remove the cache from it's location; just unscrew the top to get at the goodies.