Would this be suitable for a long weekend (maybe 3-4 nights) with my DH (no DC) in October? The train takes around three hours from London. We're interested in sleeping and eating, i.e. having a break, visiting the castle and abbey, museum, pottering around, going for a walk (not 15 mile hikes). Could we stay in Chepstow and do a day trip to Tintern? I know the weather is risky but we were unable to go during September.