sorry i cant help much on the house renting part but i have used the kennels there at sea world a few times & what is great is it is right there, so you can stop in & visit them often (i think they even want you to come by & let them out to potty & such). They only have one or 2 big kennels so if you want your dogs caged together i suggest letting them know in advance so they can reserve it for you. It is clean & has a/c, every visit i had i was very pleased with the staff there. You can even see the kennel from different areas of the park so you can keep a goood eye on them

we did go to other theme parks but left our dogs at friends/relatives houses then.