can a solo traveler roll into the island in nov and get a guesthouse without booking can you charge room and food on credit card

Depends on what you want to pay for a guest house--the cheaper ones are usually cash only.
Yes you can roll up and find somewhere No to using the credit card at lower end of the market
I recently stayed there, they have top end accommodation from $60 a night to the low end for $5 a night, which was a tent pitched on the beach. I pre booked my accommodation, the island is not very big a walk along the foreshore to find accommodation may take 20-30 minutes. Even if you want to book for one night then maybe the next day take a stroll and enquire.

I recently stayed there, they have top end accommodation from $60 a night to the low end for $5 a night, which was a tent pitched on the beach. I pre booked my accommodation, the island is not very big a walk along the foreshore to find accommodation may take 20-30 minutes. Even if you want to book for one night then maybe the next day take a stroll and enquire.

looking at mid range price I guess closest to the beach cost more do they offer yoga on the island
all accomodation is on the beach just with different types of comfort and style of accom,like thatched bungalows, cabins etc. yes i saw people do yoga on one of the peirs. although i didnt see any signs from any accom that ran a class