Breakdown of Первый заход в парную длился пять минут.
Questions & Answers about Первый заход в парную длился пять минут.
In this context, заход means something like:
- a round
- a session
- one visit/in
- one time going in
This is common in sauna or bathhouse language. So первый заход is not just a literal first entry, but more naturally the first round in the steam room.
Because в can mean either:
- into
- in/inside
Here the idea is going into the steam room, so Russian uses the accusative:
- в парную = into the steam room
Compare:
- в парную = into the steam room
- в парной = in the steam room
Even though the whole sentence is about the duration of the round, the noun заход implies movement into that place.