A visit to big body spice farm is what you'd expect on a typical spice farm tour. There's a negotiable entry fee (ours was approx. USD15 per person), after which a local guide from the farm takes you round the different plants/trees/spices while giving a brief overview of each one. There was quite a wide variety of these on the day of our visit - coffee, cardamom, cinnamon, curry, vanilla etc. Visitors are also presented with gifts (usually artefacts such a crown, a necktie and a bracelet all made from plants on the farm) as well as allowed to drink fresh coconut water for free and eat some fruits at an additional fee. Towards the end of the tour, visitors are able to purchase local spices, perfume and incense all made from the plants within the farm (generally in the range of USD10 per piece).
At the end of it all, an optional tip to the tour guides is "encouraged." 🙂
Overall it's an interesting experience.