Twenty acres at Madewini on the Soesdyke–Linden highway, an hour from Georgetown and twenty minutes from the international airport, run by Tracy and Warren Douglas. Fruit wines are made on site and tasted there, which makes it the only winery in the country you can visit.
There are forest cabins if you stay, a kitchen cooking with produce from the farms nearby, and art workshops. Prices in Guyanese dollars: a day visit GYD 8,000 a head, day plus ArtBox 10,000, an overnight for two 50,000.
By reservation only, and worth noting the access road is sand — think about the vehicle. Groups of five or more pay in advance.