We snorkeled Yal-ku when the wind in the bay was too strong and found it to be not only beautiful but not crowded either. I've got the impression that this is a hidden place where locals and tourists alike can go for a laid back snorkeling experience without dozens of tour buses lining the streets. We saw mangroves, reef fish, giant wrasses, rays, barracuda and sea birds of all sizes. Highly recommend this area, but take a cab or walk in so avoid the parking hassle. Affordable!