Visa / Locker / Getting out of haikou airport

Hi,
1) I'm a solo traveller holding a Malaysian passport, I'll be doing a round island cycling trip in Hainan Island over 9 days, do I need a tourist visa for this? I'm travelling alone free & easy, so there's no travel agent.
2) Are there any locker facilities available for rent inside the Meilan airport? If yes, how much are the charges?
3) Can I cycle out directly from the Meilan airport using S201 towards Meilancun?
Thank you in advance!