I've been to Canaima in Venezuela. We were in the country when the price riots broke out in Caracas in 1989. A bad scene where martial law and curfew were imposed for a while, but we were on Isla Margarita at the time so didn't see any of the violence. Because of the riots, all tourists canceled reservations at the Canaima resort, so we were able to go at a fraction of the usual cost. At that time Canaima was booked over a year ahead and very expensive. It's a spectacular area, the lodge overlooks large waterfalls. We did river tours in motorized dugouts, a flight up to angel falls, hikes to see orchids in the forest near the tepui's, and swam in the tannin rich river waters. Highly recommended.