I have done White Water Rafting, Hot Air Ballooning, Hang Gliding and Paragliding. All of them were fun but I think the best was white water rafting. Hang gliding, hot air ballooning and paragliding are all usually in $75 to $250 range. They usually last only for 20 to 40 minutes. Where white water rafting is three to four hours of pure adventure and fun and which only costs around $35 to $50. After white water rafting I would suggest hang gliding then paragliding and if you are looking for very relaxing ride with just hint of adventure then hot air ballooning. Hot air ballooning was exciting at very end when we landed and didn't turn out to be a smooth ending but that was the height of the adventure so I strongly suggest that if you are mainly looking for adventure the most adventurous and fun for a very low price would be white water rafting.