2-3 day trip near Coimbatore w friends

Hi. I'm looking for nice, fun resorts near Coimbatore to go and stay for 2-3 days with a group of 6-8 friends (all under 20 years old). The resort/village can be max. 3-4 hours drive from Coimbatore town. We want to go somewhere with some fun activities, not just trekking or sightseeing. Any recommendations?