Here is the link on Tokelau and the rooms mentioned that have partial lagoon views at garden view prices.
http://tikiman2001.homestead.com/tokelau.html
We were on the beach for Wishes and the EWP, but I'm sure we could have watched from our balcony 2912. But we had to crook our neck a little to the right, so we just ran down to the beach for better viewing...easy access as there is a walk down landing 2 doors down at the back of Tokelau.
I've heard you do not want to swim in the lagoon...alligator/crocodile risk. But we did see one lady allowing her young child to wade into the water. Not me. There are outdoor showers for rinsing off the sand.