Seward = 3 hour boat ride on a large boat. could be faster in a six-pack.

Whittier - about 1 hour, and you get to see glaciers. If the weather is good, great scenery. (But as they say, "it's **ittier in Whittier."

Homer - depends on where you go - we turned up Cook Inlet -- about 1 hour.

Deep Ck - Less than an hour out, and an interesting boat lauch off the beach.

By the way, I recommend the smaller six-pack boats. Much nicer experience than the larger ones - more persoanl service, and a lot of time to bs with the skipper.