Tucan Travel (I don't have any relation with it) is an Australian organisation specialised in holidays to Latin America.

The nice aspect of Tucan is that you can plan your holiday as long as you like. All trips connect to each other, so that you can link then to a travel of several months.

Positive aspect of the way Tucan works, is that there are a lot of departure dates. Negative aspect is that on a holiday of several weeks, new members can join your group.

Tucan works with Spanish-speaking travel leaders (who also speak English). Positive result of that is that they can prevent you of some problems with people who want to make money out of tourism.