We will be at a private reserve in Kruger- Simbambili - for 3 days -- is it acceptable to tip with credit card at the end of our stay? Can we specify how we want that divided? We would prefer to use cash and hand the tip directly to the ranger and tracker and staff, but did not want to travel with lots of cash. Are there ATM's in the area? We would need close to $200 for tips. Are there are safes in the rooms that are dependable? Do most people still use money belts while on safari for their money and passports?