I think it's best to book last minute and ask resorts for sightings before heading to Donsol. When we went there we were lucky because it's been 9 days since the last whale shark sighting. We didn't spot a whale shark the first day so we tried again the next morning. After three hours of searching, our guide finally spotted one. When the say jump, just jump with full gear. It was such an amazing experience swimming right above a whale shark. The guide said we swam with an 8 meter adult shark. The head was probably as wide as a bed! The experience was brief but memorable. I totally forgot about taking photos. I want to try it again with more sharks :)
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