609 in 2015 and later

648 past in 2015 (updated 17-07-'15)

Extreme swimmers brace for Hong Kong’s toughest open water event

One of Hong Kong’s most gruelling races will be held next Saturday, February 18.

Now in its fifth year, the 15km Cold Half extreme marathon swim was introduced to cater to the growing interest in open water swimming in the city. It is the winter companion event to the popular Clean Half held in October.

read the article and see the pictures and swimming course map @ SouthChinaMorningPost