I emailed the Office manager sharon smith and this is her response...Please everyone call or email for Fridays! Thanks
"Yes, that is correct, they are only having water contact at El Capitan on
Sundays at this time. If you would like to request Friday, you can call the
Lakes Program Manager, at 619-668-2030 or email him at
jweber@sandiego.gov.
Thank you for your interest in the San Diego City Lakes.
Sharon Smith, Office Manager"