Orca Island, WA

My wife and I have talked about flying up to Washington state to visit
Orca island. My understanding is that they have Oracs that live their
year-round (they don't migrate).
Can anyone suggest..

1) Best place to land ( I understand you can land on one of the
islands and you don't need ground transportation??)
2) Best place to stay
3) Best Orca activity. Do you need to get tickets for a charter boat
to go out to see them. What are the odds of actually seeing an Orca?
4) What other activities can you do on the island?

-Robert