No problem! Essaouira is a really nice town (although I think it’s expanded a bit since I was there), quite relaxed. They still play on the 60s/70s hippy association (Jimi Hendrix’s “castle made of sand” is still visible, although by all accounts it’ll melt into the sea eventually) so it’s a bit like a North African Totnes. They make lovely things out of sandalwood which are worth the money (although watch out for cheaper wood imbued with sandalwood scent). There’s also a great beach.
You’re not too far from the mountains, so day trip out there could be an option. I wouldn’t bother going south along the coast much - Agadir is very much a new resort town so not much point in going there if you already have that sort of stuff on hand.
Longer trips from thereabouts would be Marrakech or Ouarzazate (edge of the desert, feels like another world. There’s also a big movie studio where they filmed the likes of Gladiator) or the Todhra Gorge. They’re all probably overnighters though (except maybe Marrakech), so probs not suitable with kids.
Enjoy your trip - just been looking at photos and I’m well jealous!