"I suggest A Wee Pedal for covering more ground by bike: their most popular offering is a 20-mile loop that circumnavigates the city, with a 12-mile version that goes out to the rugged coastline for a more off-the-beaten-path experience. Rides are at a meandering, comfortable pace, you can rent an e-bike for an extra 15 GBP, and they also offer private tours (including one that ends at a brewery with a tasting) and a mountain bike tour. Prices start at 65 GBP." - Matthew Kepnes