As for 'what there is to do' at The Boardwalk......it all depends on what kind of people you are, and what you typically look for.
If you are a fast paced, high action, need something to 'do' every minute family that isn't in to street-mosphere and you are looking to fill an evening......well, The Boardwalk might not have much for you.
On the other hand, if you have time and like to explore at a slower pace, enjoy seeing Disney resorts and soaking up atmosphere, and you like to have a nice meal and a cold beverage or two.....well, The Boardwalk is a can't miss.
We very much enjoy spending time at the Boardwalk and Epcot Resorts. Walk the Boardwalk proper for the relaxed and fun atmosphere, explore the lobby and pool area of The Boardwalk resort, grab a drink at the Belle Vue Lounge, have a nice meal at Flying Fish, afterwards venturing back on to The Boardwalk to catch one of the performers, or partake in a carnival game (the Lobsters are a tradition for us), maybe your daughter wants a hair wrap, or you are feeling like a surrey bike ride around the lake, or a stroll past the Swalphin and Yacht/Beach Club resorts. Skipped dessert at Flying Fish?....grab a Kitchen Sink at Beaches and Cream at the BC. There until 9:00? Catch some of the Illuminations fireworks from the bridge. All that can keep you busy for quite a while, a somewhat relaxing escape just a short stroll away from the chaos of the parks. If that sounds like fun to you, The Boardwalk is definitely a worthwhile destination for an evening.