Holidays on Kent coast

[DifferentDrum]

We're considering booking a week on the Kent coast during summer holidays - me, DP and DD11. Been to a few places in Devon/Cornwall/Dorset before but Kent is shorter drive.
Broadstairs looks nice (also looked at Whitstable but prefer sandy beach & I think Whitstable is shingle!) but is there enough to do there for a week, particularly if weather's not good enough for the beach? What type of shops/restaurants/cafes are there, and is there a fair amount of choice? Are there any watersports available? Leisure centres/museums/cinemas etc? Is it very busy/touristy over the summer? Basically I'm just looking for any info, advice or recommendations from anyone who knows the area. Thanks in advance.

I’d say Margate in terms of leisure activities other than the beach. There’s The Shell Grotto, Dreamland, Turner Contemporary museum and the Hornsby visitor centre. The leisure centre has Wet n Wild swimming sessions with a giant inflatable assault course. There’s bike hire and a family-friendly escape room called The Escapement. Shopping-wise, there are several vintage and individual shops where you can find some unique things and which are just nice to browse in. And there’s been a big boom in restaurants recently.

Thanks for your reply. Don't think we'd actually want to stay in Margate but am I right in thinking it's only a short drive from Broadstairs for the rainy day activities you mention? Wet and wild swimming sounds right up dd's street!