What are the best companies to use for a trip/tour from El Calafate to Torres del Paine? From everything I've seen thus far, it looks like you have to go through Puerto Natales to get into the national park - is this your experience? Is there only that one park entrance? We'd love to be able to stay longer at our hotel in El Calafate over a night in Puerto Natales, but not sure which makes most sense for time. Also, what is the timeframe for the ride? I know we'll have to spend a bit of time at customs to get through the border as well.