Portsmouth & Southsea
Portsmouth Historic Dockland is approximately half an hours drive from Selsey and well worth a visit to just wander around the docklands, or visit one of the many attractions: The Mary Rose, HMS Victory, HMS Warrior, Harbour Tours, The Royal Naval Museum to name a few. It is next door to Gun Wharf Quays which has an abundance of places to eat (many on the waterfront) and is home to the South coasts leading designer shopping outlet (with over 90 famous brands with up to 60% off all day, every day).
Southsea has a promenade walk along the front, with restaurants and cafes and this is where the hovercraft departs to The Isle of Wight.