During his 2005 expedition to the Transbeni region of Bolivia, Simon e-mailed a series of expedition updates to the Times Educational Supplement. Read them all here:

Indiana Jones with GPS Published: 29 July 2005

Bathing with pink dolphins Published: 05 August 2005

Horses sweat, men glow Published: 12 August 2005

Eye of el tigre Published 19 August 2005

Where the river ends Published: 26 August 2005