Seyed Ali Shobayri, Seyed Ali Shobayri is of mixed Iranian and Scottish descent who found the path of the Ahlul Bayt (a) by his own research. He holds a BA in Islamic Studies from Middlesex University through the... Answered 7 months ago
Bismillah,
Asalamu Alaykom,
This is allowed unless doing so would be considered as a type of disrespect or mocking for Muharram which is highly unlikely. Also provided that one doesn't swim somewhere where the environment could be haram
May Allah swt grant you success