Lisbon Two Nights

You meet the guide at a fixed point and move through a run of bars across the evening, usually four or five, finishing at a club. The guide knows the doors, so you skip the queue and the group is not turned away for being too large. Most crawls include a welcome drink or a shot at each stop, and entry to the final venue. The rest is on you. Groups from several bookings are often merged, which some stags like and some do not, so ask whether yours is private. Dress code is the club's, not the guide's. No trainers and no sportswear at the last venue, and matching shirts get refused at some doors.

Tours run one to three hours on foot, by bike or in a minibus, with a guide who takes questions and sets the pace. The route covers the landmarks and the stories behind them, and a good guide will pitch it at the group rather than recite a script. It is the one activity that works with a hangover, and it is how most groups get their bearings for the rest of the weekend. Comfortable shoes and a jacket. Walking tours go ahead in the rain.