The National Sports Centre in Douglas says it's to reopen at 4pm.
Earlier today, the NSC said the River Glass had risen to risky levels after torrential rain this morning.
It tripped flood alarms and defence barriers had to be put up, prompting a temporary closure.
However, it now says it'll reopen from 4pm.
Plans for four-foot flood walls at Ramsey harbour
Garage blaze in the early hours of this morning
Art anarchists "hiding gold bars" in Douglas this week
No cases of terror financing through charities
You can now adopt an ambulance
Case for horse tram tracks 'under final review'
Council spends more than £1m on beads for cavities
Police recruitment drop-in sessions tonight