I am doing same next month. 02-06Feb at Treasure Beach (Irie Rest at Billy Bay) and then back to Negril for rest of the month.

With thanks to TAH on another thread, I understand that closest ATM is also at Black River. So my plan will be to get all my essentials (JA cash and my bheer) on way from Mobay to Treasure Beach.

Looking forward to a new experience in TB, and hope you have a great time too.