being a sixteen year old in america i grew up in agadir until i was 8, there's lots to do, they can go to the beach it's six miles long, you guys can go to taghazout a really awesome beach with lots of sun not many clouds, its about 20 miles away. You guys can go to "Jour et Nuit" A great restaurant directly across the street from the beach, there's camel riding down a mountain in Agadir Oufla, I'm not sure if your kids would be interested, you could go to many places, but not many for kids if you enjoy gambling there's a casino, you enjoy drinking there's many bars, you enjoy surfing, wind surfing, swimming, fishing, any water sport imaginable it can be done on the waters of Agadir and the kids will enjoy it, I hope your stay will be great, and marvelous. It's a fun place, with a great night life, although if you go to a part of the city called talbourjt you might wanna be careful of the drunkards they are drunkards though so no harm inteded there, I just didn't trust them when I was a kid. Good luck on your voyage.
Source(s):
I lived in Agadir from a one year old to an eight year old, so mostly my memories.