The Cactus Park at Itoman boasts over 450 species of cactus, 100,000 plants in all, of every height and ranging from globular to fan-shaped. Li Chien's pride and joy is a 10 meter tall bankaicyu, which is a type of cactus that only grows one centimeter a year so it must be getting on for 1,000 years old.
而在系滿市的「仙人掌公園」，則擁有四百五十多種、十萬株的仙人掌，或高或矮、或球狀、或扇形，其中最令李堅引以為豪的是一株十公尺高的「弁慶柱」，這種仙人掌平均一年只長一公分，樹齡估算都近千年了。