Best things:
Cruise critic people and activities. Glad we joined the rollcall. - Our organizer is a natural and loves doing it.
Mostly great shows and entertainment, lots of variety.
Snorkeling at Blackrock was fantastic. Catch inexpensive bus to get there.
Long wait for Hilo Hattie bus, save yourself a hour.
Walk up to street, catch city bus, ask for all day pass, $5 (less for US seniors and military)