Core classes at Riverside leisure centre

Navigating the New Year at our leisure centres

With the busy post-Christmas period on the horizon, we've put together a handy Navigating the New Year guide to help you get the most out of your membership in 2025.

Our instructors will guide beginners and challenge experienced class-goers.

The minimum age for classes is 14 year old, but classes marked with a * are for over 16s only.

If you want to view our timetable more than seven days in advance, you can download the Chelmsford City Sports app.

Les Mills Core

This is a 30-minute core training workout that delivers quick results for all fitness levels. Exercising muscles around the core, Les Mills Core provides the vital ingredient for a stronger body.

Standard prices

30 minutes: £8.10
45 minutes: £8.90
60 minutes: £10.20

Discounted

30 minutes: £7.60
45 minutes: £8.40
60 minutes: £9.40

Save money by upgrading to an ourChelmsford Plus or monthly Premium membership.

Standard prices

30 minutes: £6.80
45 minutes: £7.90
60 minutes: £8.90

Discounted

30 minutes: £6.30
45 minutes: £7.10
60 minutes: £8.10

Save money by upgrading to a monthly Premium membership

Our exercise classes are very popular, we advise booking in advance.

You can:

book online or via the app with an ourChelmsford card
book by calling 01245 615050
book when you visit Riverside

You can book onto classes:

ten days in advance if you have a monthly membership
seven days in advance if you have an ourChelmsford Plus card
two days in advance if you have an ourChelmsford Lite card

You will need to book a session in advance to guarantee your space.
If you do not check-in, we will charge you the full amount for the session.
Please make sure that you have registered your email address with us in order to book online.

If you can't attend a class that you have booked onto, you must cancel at least two hours before it starts.
You can cancel online or via the app, by calling 01245 615050 or in person.
We will charge you the full amount for the class if you do not cancel in time, or if you do not attend.

You will need to collect a ticket from reception when you arrive for your class.
Monthly members can swipe through the barrier and register their attendance.
You will not be allowed entrance to any class if it has already started.
To allow time for changeovers, classes will finish five minutes before the advertised time.

If you want to use a locker on poolside, you will need a £1 coin to release the key. You will get the £1 back when you return the key.
There is a male group changing area and a female group changing area located on poolside.
Accessible changing facilities are located on poolside.
The pools complex, including the changing area is a shoe-free zone, this includes the removal of flip flops.