We are cruising on June 20, 2014 Athens to Istanbul in a family group with 4 fifty something's and 5 20 something's and one active 70 something. Just wondering about a few things. Anyone have advice about Off shore excursions independently with guides with a group our size? What is the policy about bringing your own alcohol on board? I've seen conflicting reports about water and soft drinks costing extra. Also, what has been the experience about the extra days/nights before and after the cruise in the start/ end ports?