A fully escorted tour packages, which means in each city you will have your own professional tour guide and/or driver with a private air-conditioned car/van/coach at your service during your staying there, from meeting you at the airport upon your arrival, showing you around, till seeing you off at the airport for your next destination. Exemption only when public transportation/shared transfer required due to certain conditions such as boat riding, crusing, attractions restriction, vehicle restriction, etc...
Seat in Coach
SIC tours stand for Seat-in-Coach Tours, which means you will share an air-conditioned coach or van with other tourists and you will have an English-speaking tour guide (may be not) to take you to all the scenic spots listed in the Itinerary that day.
Compared with private tours, SIC tours are usually less expensive than private tours, but private tours are more flexible.