45 kilometres from south east of phuket, take 45 - 60 mins by speed boat.And ferries from Phuket at Rassada Pier depart at 8:30 AM and 1:30 PM takes 90 minutes.
"phi" is a greek letter. Its used in the name of many organizations. I don't think Phi by itself indicates any one of them. It does not indicate zeta phi beta. Their nickname is "zetas"