Could anyone suggest a scenic walking route from Salisbury (or environs) to the coast near Swanage? I'm an experienced hiker but new to England. As a reader of Hardy, I'd like to get a feel for the downs. I saw info on the Wessex Ridgeway, but that seems to head further west to Lyme Regis. Also I'm hoping to spend the nights in B&B's or hostels and wondering whether I can get by without booking in advance.