Take a bus,number 100, in front of Gate2, at the airport to Jeju bus terminal.
And transfer a ‘Dong-il-ju Bus'(No.701) and get off at ‘Haenye Bangmulgwan(Museum)(해녀박물관). It take about 1 hour from Bus Terminal to Haenyeo Museum
After then you just follow signposts of LEFTHANDER.
You can see LEFTHANDER in 3 minutes.