The Seven Sisters, a series of chalky bluffs along the Sussex coast, is known as one of the best seaside strolls in England. Just about a 90-minute train ride from London’s Victoria station, it’s also among the most popular. Plenty of company from fellow walkers, but worth it for the big expanse of sky, ocean, breeze and downs. In the middle of the walk, a World War II-era Spitfire performed aerobatics over the sea with paragliders cruising the sky just off the cliffs. Part of the South Downs Way. Just don’t go too near the edge. Click here for a short gallery. Click here for information on the walk.