This national botanical garden in Chile is only worth the visit, if you are in town.
It is located right outside Valparaiso, in a huge valley. I visited in 2012.

It is mainly dedicated to trees like these Chilean palm trees.; Jubaea chilensis

Some parts have endemic plants from remote islands, requiring a special climate

The nursery was closed when I visited the BG

The cacti house is large, and have quite some cacti from around Chile

A few shallow lakes

The un-sheltered cacti bed

Pretty flowers have their area

A house for the humid-loving plants