Crystal Waters was one of the first RTG bonus feature slots launched, but remains one of the most popular among online gamblers.
The slot has an underwater theme and is full of dolphins which double your win if they appear in a winning combination.
The bonus feature is activated if 3 scattered yachts appear anywhere on the screen. 15 Free games will then be given. During the free spins, if a bonus fish appears on reel 3 - it will act as a wild symbol and your wins will be multiplied by 2,4 or 8.
If there also happens to be some dolphins swimming by at the same time, then your win can be multiplied up to 16 times!
Don't forget that you will also stand a chance of winning the mystery random progressive jackpot!