Problem booking a swimming session

[rossennis]

I'm trying to book a single swim session for the beginners at Fri 12th.

It says on the site there are 4 spaces but when I click the link it says booking not open? I'm sure I'm making an obvious mistake :-)

[niallm]

It’s too early to book for the 12th.

PAYG swim tickets go on sale starting at 10:00am 3 days prior to the session so I believe that means Tuesday at 10am you can book for Friday

[rossennis]

Thanks Niall