If you did nothing else except sit at the window of the B&B or on the private deck, it would be worth it. There is a Salmon Creek right next to the B&B, when the salmon are running there is a flurry of activity right out your window with eagles and seagulls scooping up the returning salmon. the eagles are everywhere. There is much more to do just within walking distance, the awesome beach down below, Auke Bay, Fritz Cove Road and the really secluded and scenic walking trail around Auke Lake (might even see a bear). Lots of bike trails.
The owners, Char & Jeff, & Laci their daughter, are fun and informative. the property is impeccable and just downright beautiful. Ask for the binoculars.
Take time to go up to the Mendenhall Glacier (the owners' daughter took us out by kayak and we walk around the glacier, it was sooo cool!); go downtown and see the huge cruise ships right in town, there's a botanical garden worth seeing, lots of the typical shops and restaurants; there is a state of the art NOAH facility that gives tours and another salmon facility downtown, both are well worth the time to tour and learn about the whole ecosystem - it's fascinating!! - You can easily charter a fishing trip (which I recommend) or take the State Ferry up to Haines (which i recommend) if you have more time.
We've been there twice and will return.