Oslob in Cebu City is widely popular for island hopping trips and whale shark encounters. There are various agencies online where you can book trip packages at a very inexpensive cost. The whale sharks in Oslob are legit, meaning if you book whale shark diving or snorkling, there's no way that you are going to miss out the whale sharks swimming with you, because they are definitely there!
Watching of whale sharks in Oslob Cebu City is 99% guaranteed. The activity is done in a small barangay of Tan-awan, which is probably 10 km away from the main town of Oslob.