DISCOVERY Expeditions (0747 55050) still has spaces available for its trip to the jungles of Guyana being led by Colonel John Blashford-Snell. The expedition, which departs on 21 August and returns on 21 September, intends to seek out giant otters, horned anacondas and a monkey-like creature called Loys's Ape. The party will also be carrying out research with the Paramambo tribe.

The cost of the 'El Dorado Guyana Expedition' is pounds 3,245 per person (excluding the air fare of approximately pounds 650) and is open to anyone over 25. 'Compatibility is more important than super-fitness,' say the organisers.