we took our son to Ibiza when he was 15 months old (not the clubbing part of Ibiza!) We also went with my parents, so as we had four sunbeds around the pool we created a sort of mini playpen where our son could play with buckets of water and his toys under a parasol, it meant we could still go for a swim every so often and sunbathe. Eating out was no problem as we took a clip on highchair and we asked for an extra plate and he had some of our food rather than ordering a whole portion for him. There wasn't much to do during the day for him apart from the beach and in the evening my parents were happy to sit on the balcony with a bottle of wine whilst our son was in bed, while we went out. I should mention that our son is now 17 so we are talking a few years ago, but we have more recently also stayed in campsites in France staying in a mobile home rather than a tent and you have more in the way of entertainment but the freedom to cook or eat out as you want.