Hi Lisa,For Costa Rica, October through early December is the best time to come: harvest, fermenting, drying all happen in these months. Actually the cacao here is produced year round, but these months represent the main harvest and it's by far the best time to come. I don't know offhand of any tour companies offering specific chocolate tours, but I do know of several farms and co-ops which either offer tours, or would be happy to show someone around. We are based on the Caribbean side so the following suggestions are for the eastern part of the country. Rainforest Alliance farm, 'La Amistad'; Catie, a research and educational facility developing new strains of cacao, based in Turrialba; Caribeans, a local organic chocolate producer with a small demonstration farm; Sibu Chocolate, a production company which works with organic / Rainforest Alliance farms; Chocoart, a farm and production company making minimally processed bars; there are several local indigenous families making chocolate and cacao butter from their own cacao. And us, Finca la Isla, a permaculture farm just starting to produce our own bars on-site.Happy to share more if you message me(?),Ancel
updated by @Ancel Mitchell: 11/18/15 14:07:25