ちょう距離 きょり自然 しぜん歩道 ほどうでしょう
chōkyorishizenhodōdeshō

Noun
Desu Copula

Expresses probability in a polite manner ("probably…") of 長距離自然歩道

1. Probably a long-distance hiking trail.

Polite
Presumptive
Conjecture