Trebah Garden

This place is close and the best Garden in Cornwall (IMHO). They have a nice cafe or just down the road is the the very scenic Ferry Boat Inn.

A beautiful garden walk through the sub tropical valley to the tranquil beach at the bottom.

Similar to Glendurgan and in the same area but not National Trust. Another good option.

Trebah Gardens a must if you like your plants and flowers

Beautiful gardens for the whole family with a beach at the end. Check their website for events.