Two friends of mine who are getting married next month are going to Bali for their honeymoon. They're staying at really nice hotels (St. Regis, Four Seasons, etc.) and I'm sure they have a bunch of fun things lined up to do there (they are also not travelling on a shoestring budget).
My question is: Can anyone recommend a creative/unique adventure, activity, site, or anything along those lines that I can do for my friends as a wedding/honeymoon gift? Getting them a bottle of champagne and chocolates for their hotel room is the last resort because I would like something really creative that they might not think of on their own (also, I'm not sure how much that would impress them because I could do that for them anywhere).
I looked into tours but they all seem very touristy and commercial...
I also thought about a helicopter tour but it's out of my budget.
I'd like to spend between $100-150, maybe a bit more for something really worth it. Any suggestions are greatly appreciated!