20m pool

The 20m pool at St Mary's Hospital 

Updates to service (COVID-19)

Due to the ongoing COVID-19 situation, St Mary's Pool will be closed indefinitely.

We apologise for the inconvenience caused.

Click here to download the St Mary's Timetable [PDF ]

Whether you simply want a relaxing swim at the end of a hard day or whether you're training for a competitive event, 20m swimming pool, set in bright and modern surroundings, provides an ideal swimming environment.   

Swimming pool

Opening hours

The pool is open:

Open swim hours until 20 March 2020

  • Monday: 08.00–11.00, 12.00–14.30
  • Tuesday: 11.00–14.00, 15.00–19.00
  • Wednesday: 09.00–11.00, 12.00–15.30
  • Thursday: 12.00–14.00, 15.00–19.00
  • Friday: 12.00–14.00, 15.00–18.00
  • Saturday and Sunday: Closed

For School / Fast Fins use times, please download the full timetable above. 

The last entry is half an hour before closing time.

St Mary’s Swimming Pool will be closed during all Imperial College closure days




Using the pool

All users are reminded to present their ID / Membership Card to staff on duty to be sign-in at the pool office before using the pool. Memberships must be purchased at the pool office using a debit/credit card on the PDQ machine; no cash will be taken on site for payment of memberships.

Lockers are available to store all personal items while using the swimming pool; please do not leave items in the lockers overnight or they will be removed.

We do not supply towels.

Please shower before entering the pool.

Please use the overshoes provided whilst at the pool if you are not swimming.

IC Students: the swimming pool is FREE during off peak times for students who have an IC Student Basicmembership or inclusive for students who have the IC Student Gym & Swimmembership.

IC Staff: staff are required to purchase a 30 day unlimited membership or join Club Imperialand pay a month fee through payroll deduction.

NHS Staff: NHS staff are required to purchase a 30 day unlimited membership.

Public: members of the public are required to purchase a 30 day unlimited membership.

Children: children (3-16 years old) are not permitted to swim, unless as part of a school, a FastFins lesson or any other private hire. Children must be accompanied by a parent/guardian whilst at poolside  who are responsible for them at all times.


Imperial students are required to take out a Student Gym & Swim Membership or IC Student Basic through Ethos and request access to St Mary's via the ASK Sport System, the pool is included in this membership for no additional cost. 

New Membership Price Table as of 3 December

Membership TypeIC Students and IC Staff with Club Imperial30 day unlimited membershipClasses

 IC Students

 FREE with IC Student Basicmembership; includes access during off peak hours*

Inclusive with £30 annual IC Student Gym & Swim membership; includes access during all open swim times

n/a Please join Active Imperialif you would like to take part in classes run at this Facility

IC Staff

n/a £21 Please join Active Imperial if you would like to take part in classes run at this Facility

Club Imperial

Included n/a Please join Active Imperial if you would like to take part in classes run at this Facility

NHS Staff

n/a £21** n/a

Public Swimmers

n/a £32** n/a

 *Off Peak hours:

Monday: 07.00-11.00 (last entry 10.30)
Tuesday: 11.00-12.00 (last entry 11.30), 14.00-17.00 (last entry 16.30)
Wednesday: 07.00-11.00 (last entry 10.30)
Thursday: 14.00-17.00 (last entry 16.30)
Friday: 14.00-17.00 (last entry 16.30)

**These membership prices are for access to the St Mary’s Swimming Pool only