Hi we just got back. Mendenhall was definitely worth it. It is not far from town and can be accesed many ways. We also did that and the wildlife quest. The boat was great, new clean and the crew terrific. We saw humpback whales, sea lions, seals, eagles and sitka deer. No bears I'm afraid. The day we were in Juneau all helicopter tours were cancelled due to bad weather. A few folks got out later in the day and loved it.
Have a great time!
Sue