The Marina de Guerra del Perú recently published a photo essay on brown water infantry troops doing what they do via some interesting watercraft. As part of the 45th annual Exercise BRACOLPER, in which Colombian and Brazilian riverine units visit Peru for a joint training op, the Peruvians have been showing off their British-made T-class Griffon Hoverwork (GHL) 2000TD hovercraft, of which they own seven.
The 2000TD is in use with several NATO countries such as Belgium, the Baltic states, and Poland, as well as with the Royal Marines, Finnish border guard, and Colombian naval infantry– which is the largest user. Some 38-feet long, they can carry 20 passengers at a speed of 35 knots. The Peruvian models are fitted with aluminum armor and have a forward gun mount that can accept anything from a 5.56mm LMG to a Mini Gun.
The 25,000-member Peruvian Navy has a decent blue water force to include modern frigates and a professional submarine force (they were also the last fleet in the world to operate a large gun-armed cruiser outside of the U.S. and Russia) but, as the country is bisected by the Amazon, Apurimac, Ene, Mantaro, and Madre de Dios river systems, they also have significant riverine forces as well.
The Peruvians have a marine (naval infantry) brigade that includes three battalions oriented towards blue-water and coastal operations and two (Teniente Quevedo and Teniente Villapando) to riverine ops as well as a commando unit and supporting artillery and engineer assets.
For reference, check out this video of Peruvian 2000TDs at work.