Yes, Whispering Canyon is much fun! If you want something quicker, you can grab a 'berger at the snack bar, Roaring Forks. You can rent water mice, and bikes (regular, for 2, and surry).
WL is a GREAT resort to "poke" around. Hint: don't just stay in the bottom lobby, walk up the stairs surrounding it. There are lots of neat hidden corners.