I would NOT do a land tour of Hawaii. I did that the first time I went to Hawaii. We had 3 islands and we spent too much time packing and moving from hotel to hotel. 3 days of the trip wasted doing this. If I were going to do Hawaii again it waould absolutely be a cruise. Unpack once and let the ship take me to the different islands.
“Twenty years from now you will be more disappointed by the things that you didn’t do than by the ones you did do. So throw off the bowlines. Sail away from the safe harbor. Catch the trade winds in your sails. Explore. Dream. Discover.“