Anglican church built from 1380 in local flint and stone. It's on the castle grounds and adjoins their RC Fitzalan Chapel.
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Cathedral Church of Our Lady and St Philip Howard
Completed in 1873 as a Roman Catholic parish church, and since 1965 a cathedral, seat of the RC Bishop of Arundel and Brighton. It's neo-Gothic and designed by Joseph Hansom (1803-1882), architect for over 200 churches as well as inventor of the Hansom cab. There is Mass Tu-Su and frequent concerts.
Built from 1067, damaged after the Civil War but relentlessly rebuilt and re-imagined over the 19th century (when Queen Victoria stayed), this is a picturesque castle often used as a film and TV location. The courtyard hosts jousting, medieval combat and open-air Shakespeare. The extensive gardens were refurbished in 2020.
Cramped but interesting display of local history from Roman times to the present, including clock-making, horse-racing, the railways and children's experiences.
Heated outdoor 25m pool plus paddling pool. They also hold fitness sessions year-round.
The Lodge tea room is open daily year-round in all weathers, but the thing to do here is to hire a rowing boat and plosh around the lake. Weather permitting these are available Apr-Sept, Sa Su in term-time and daily Jul-Aug. Small dogs permitted if they promise not to catch a crab.
Rainbow and brown trout fly fishery and farm in woodland valley, pre-booking recommended. The waters are chalk-filtered and clear so you can see the fish - and they can see you. No dogs.