We just returned from HH and I happen to have a copy of the activities for the week we were there. I would imagine they would be close in the coming weeks. Here's what they offered for kids and the costs.....
unbirthday party - ages 7-12 & ages 3-6
Gyotaku - ages 5 & up cost $10 for members/$12 non-members
Disney creative chefs pizza on the grill - ages 5-12 cost $10/12
Kids night out - disney detectives - ages 5-12 cost $20/25
Face painting
Pirates of the calibogue - families
Sea Island Shakers & Sticks - families
beach soccer - ages 5-12
Kids night out - movie - ages 5-12 Cost $20/25
Discovery club butterflies ages 3-6 cost $20/25
Discovery club big murggies Marsh Adventure - ages 7-12 Cost $20/25
There are also several family activities (magic, Shadow tales, campfire, pool games). The one thing our 7 year old would have probably enjoyed was the kids night out detective evening but they were all filled up by the time we tried to register. If something interests you, you might want to sign up early.
Our boys, 2 & 7, loved riding bikes to the beach every day and playing in the ocean. Then we'd go to the beach house pool for a bit before riding our bikes back to the resort. They loved swimming in the Big Dipper pool and our DS7 loved the slide. Our DS2 chickened out after he sent me down to catch him. They loved crabbing off of the pier and watching for dolphins swim in the creek. DS7 loved looking for Hidden Mickey's.
I'll bet your kids will enjoy HH. Our 7 year old prefers it to DW. Have fun!!