Hi Firemansam
I went about three years ago, so info is not very up to date, (you may have been since then), but as no one else has replied I thought this might help.
For kids activites, there is an animal park there, I can't remember it's name, but it is heavily advertised in all the hotels, that was good for a day out, although in July we needed mossie spray. It's not in the same league as anything in Orlando though. Are you going to Orlando as well? If so you may be unimpressed compared to Animal Kingdom etc
Don't know if you have access to a car? We drove down to Evergaldes City, did an airboat ride, saw gators, manatees, pelicans & various other wildlife in a natural setting. Kids loved this. There was also a small gator park there, where you can go and hold baby gators.
We drove to tin city ever other evening and ate there, in various restaurants that face the water, had a mosey round the rather specialised tourist shops there. Kids liked this because of old fashioned style sweet shops & quality souveniers.
We did a sunset boat cruise from the quay, which was wonderful it took about 2 hours. When you get out into the gulf we saw pods of dolphins & there were ospreys too. You get a comentary and they also point out all the billionaires homes that front the water as you go further into the gulf.
Naples Mall is OK, but this is only any good if you & your kids like shopping. It's pristine and a pleasant way to spend an afternoon,especially if it rains.
The 1st time we went years before, we did the 'Naples trolley tour'. It takes about two hours & familiarises you with Naples, you can get on & off at the various stops if you wish. Didn't bother the 2nd time as we felt we new the place. We also drove to Sanibel and Captiva the 1st time, the beaches are like paradise there, but too hot in July and August for young children.
We also spent a fair bit of time round our hotel pool, as it was July and hot, hot, hot.
Which hotel are you staying in ?
Doe