あぶない はし わた
abunai hashio wataru

Godan Verb (ru)
Idiomatic Expression

1. to tread on thin ice; to go out on a limb; to walk a tightrope; to take risks; to cross a dangerous bridge — literal

その探偵 たんていはずいぶん あぶない はし わたってきた。
sono tantēwa zuibun abunai hashio watatte kita.
The detective has a lot of adventures.
Other forms: