We were told they will have both 110v and (240v?) outlets. Actually there is usually only one of each available. We have been bringing a 6 outlet "surge suppressor" to plug in the phone, computer, etc.
I asked about the tours on the Carnival site. The official reply was that they "expect" them to be posted June 1, but would HOPE they could do them sooner.
If you are interested in a site only devoted to this cruise---one in which the members have set up their own tours and parties in Hawaii and many of the islands----*edited for commercial content*
See you onboard!