1Peel and pit the avocados, then place them in a blender.
Add the boiled chestnuts to the blender.
Peel the carrots, cut them into small pieces, and add them to the blender.
Add the pineapple chunks to the blender.
Pour the agave syrup into the blender.
Blend all the ingredients on high speed until the mixture is smooth and creamy.
Taste the smoothie and adjust the sweetness if necessary by adding a little more agave syrup.
Once the desired consistency and taste are achieved, pour the smoothie into glasses.
Serve the Tropical Chestnut Smoothie immediately, garnished with a slice of pineapple or a sprig of mint if desired.