2  (6,547 /sq mi) Time zone IST  ( UTC+5:30 ) Area 15.42 km 2  (6 sq mi) Website www.kavalayoorboys.webs.com Varkala  ( Malayalam :  വര്‍ക്കല ) is a coastal town and  municipality  in  Thiruvananthapuram district  situated in the  Indian   state  of  Kerala . It is located 51 kilometres (approx. 32 miles) north-west of  Thiruvananthapuram  (Trivandrum) and