Same goes for whales, dolphins and porpoises
The Manx Whale and Dolphin Watch is asking members of the public to report basking sharks.
It says 'sightings have been strewn all over Facebook' over the last few days but it's becoming difficult to find the details to log them.
The organisation adds, with a small team on the ground, it would only take five minutes to report and it would rather have 20 people reporting the same shark than none at all.
Meningitis B vaccination scheme to be rolled out on-Island
Programme is for eligible Year 13 students and under-25s
Balthane Roundabout plans on hold until 2027/28 as costs rise
Price tag has jumped up by £600,000 since scheme was first approved
Port St Mary lifeboat launched to rescue stricken fishing vessel
RNLI crew tows vessel back into harbour
Enquiries ongoing after 'shotgun-like sound' heard near Police Headquarters
Police say there's no indication of any wider risk to the public