Here are some Chinese characters that contain the elements of gold (金), water (水), and wood (木):

1、钦 (qīn) contains gold (金) and water (水)
2、沐 (mù) contains water (水) and wood (木)
3、森林 (sēnlín) contains wood (木) but no gold or water directly, however, 森 (sēn) has a variant 杉 (shān) which has a relation with water in some contexts

However, I found one that relates:

4、鑫 (xīn) contains gold (金), 淼 (miǎo) contains water (水) and 杉 (shān) contains wood (木)、So how about 鑫淼杉 (xīn miǎo shān)?

A more accurate answer would be:

5、 金杉 (jīn shān) or 杉金 (shān jīn) which contains both gold (金) and wood (木) but not exactly water.