I had some mates camping there a few years back, and spent a drunken night up there, yeah it's nice.
As you are looking forward to some seaside, there's 3 licenced cafes that are basically on the beach I can recommend -
Blue Bird Cafe, Ferring, sleepy village that adjoins Worthing.
Sea Lane Cafe, Goring, outskirts of Worthing borough.
Coast Cafe, town centre, short walk east from the pier, attached to East Beach Studios, small units occupied by local artists. They normally hold beach DJ/party/rave nights in the summer, but not this year.
Looking for a village pub in the town centre? Check out the Rose & Crown in Montague St, lovely beer garden, as you can see from the urban Worthing meet-up photos, from
THIS POST.