boat racing facility; boat racing venue
Refers to a physical location where boat races (kyōtei) are held, including the track, stands, and related infrastructure.
週末に競艇場へ行って、初めてボートレースを観戦した。
I went to the boat racing venue on the weekend and watched a boat race for the first time.
Compound of 競艇 (kyōtei, 'boat racing') and 場 (jō, 'place' or 'facility').