He said the round - trip Lanier tour boosted his confidence about his ultimate goal : to swim 153 miles around the Hawaiian Islands .
The round - trip Lanier tour was his second ultra-swim on the manmade North Georgia lake .
He said the round - trip Lanier tour , which was his second ultra-swim on the manmade North Georgia lake , boosted his confidence about his ultimate goal : to swim 153 miles around the Hawaiian Islands .