What statistics are available for openwater swimming and the number of participants?
You can also fined more information about Open Water Swimming and Events at US Masters Swimming website:
http://www.usms.org/comp/event_search.php?utm_campaign=top_nav&utm_mediu…
Open Water Swimming is becoming very popular in the Us. I am a Total Immersion Swim Coach and instruct many people who are training for longer distance open water swimming events. Good luck everyone! Swim amazingly!