Our Lady and Saint Philip Howard (Arundel Cathedral)

The cathedral sits bang in the middle of Arundel, impossible to miss with its soaring Gothic spire cutting through the Sussex skyline. It's dedicated to Our Lady and Saint Philip Howard, and stepping inside feels properly grand - high vaulted ceilings, stained glass that actually catches the light well, and the kind of peaceful quiet you don't get many places these days.

You're looking at a Victorian-era Catholic cathedral, which makes it relatively young compared to some of England's medieval churches, but that doesn't make it any less impressive. The interior is what draws people in. The craftsmanship is evident in the stonework and the altar area, and there's genuine atmosphere here rather than just tourist-trap reverence.

It's free to wander around, though opening hours can be a bit variable depending on services and events - worth checking the website before you go. Allow 30-45 minutes if you're taking it slowly, less if you're just popping your head in. History buffs will appreciate the Howard connection; families with older kids won't find it boring, though younger ones might get restless if there's not much going on.

If you're camped at Brookside or Littlehampton, both within a couple of miles, this fits perfectly into an Arundel afternoon. The town itself is worth exploring - the castle's right there too - so you can easily combine a cathedral visit with a walk along the River Arun. Don't expect a massive time commitment, but it's genuinely worth 45 minutes of your day.