Everard Im Thurn - the first explorer to reach the summit of the lost world - described the landscape he discovered as “some strange country of nightmares”, because the flat upper surface of Mount Roraima had been sculpted into an extraordinary wasteland of twisted stone adorned intermittently with pools of standing water, sediment floored drainage channels or pockets of low-growing vegetation and valleys lined with sparkling quartz crystals. This ancient landscape has remained little changed for millions of years. The prominent rock formations of the tepuis are diverse and complex, and often bizarre and intricate. Towering rock arches, immense mushroom-shaped…

No part of Earth has more, high waterfalls than Guiana! Once one has seen one or some of the larger tepuis, one also will have seen the signature waterfalls descending from their summits, sometimes falling hundreds of meters without obstruction. What might be the most magnificent and famous of all the waterfalls of the Guiana Highlands, and perhaps the best known of the region’s natural features, was discovered by American bush pilot Jimmie Angel on 14 November 1933. Whilst flying over Auyán Tepui, a great tableland massif in the north of Guiana, Angel observed an immense plume of water that…