6 Best CrossFit & HYROX Gyms in Grays, United Kingdom (Nov 2026)

Quick comparison6 gyms side by side · Show

Gym	Area / Transit	Type	Drop-In	Weekly	Climate	Book
Two Tails CrossFit	Wickford, Essex	CrossFit Affiliate	–	–	–	Website
CrossFit Orpington	OrpingtonSt Mary Cray station (short walk)	CrossFit Affiliate	20 GBP	50 GBP	–	Website
CrossFit Against the Fire	Erith	CrossFit Affiliate	–	–	–	Website
CrossFit 13	Hutton, Essex	CrossFit Affiliate	15 GBP	–	–	Website
NWK CrossFit	Gravesend	Functional Fitness Box	–	–	–	Website
CrossFit Thurrock	Grays	Functional Fitness Box	–	–	–	Website

Two Tails CrossFit

5.0(47 reviews)

Official CrossFit AffiliateCrossFitOpen Gym

Suits people who want coached CrossFit classes and a community feel in Essex, with open gym included in memberships. Before going, book a free taster, since the site lists a 7-day trial for £25 that is refundable on joining.

Best for: Coached CrossFit training, Essex-based members

Wickford, Essex www.twotailscrossfit.co.uk +44 7802 260163

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CrossFit Orpington

5.0(24 reviews)

Official CrossFit AffiliateDrop-in 20 GBPCrossFitBarbellParking

CrossFit Orpington is well suited for travelling athletes who want structured CrossFit or Hyrox sessions. Drop-ins must have prior CrossFit experience because beginners must complete an onboarding program.

Best for: Visiting CrossFitters, HYROX training

Orpington · St Mary Cray station (short walk)www.crossfit-orpington.co.uk +44 7893 948154

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CrossFit Against the Fire

4.9(26 reviews)

Official CrossFit AffiliateCrossFitHYROX

Suits beginners and everyday athletes who want coached CrossFit, HYROX-style conditioning or weightlifting in a small, friendly community. Book a consultation first, because the site lists no drop-in prices or class-entry rules.

Best for: Beginners, HYROX prep, Everyday athletes

Erith www.againstthefire.co.uk +44 7854 841590

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CrossFit 13

Official CrossFit AffiliateDrop-in 15 GBPCrossFit

Suits people new to CrossFit who want a free taster and coached sessions near Brentwood. The one thing to know: a single visit is arranged by contacting the gym, not booked online.

Best for: Beginners, Visitors wanting a free taster

Hutton, Essex www.crossfit13.com

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NWK CrossFit

4.9(27 reviews)

Functional Fitness Box

The official pages returned only a security check, so no class types, prices or schedule could be confirmed. Confirm drop-in availability and times directly with the gym before travelling.

Gravesend nwkfit.com

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CrossFit Thurrock

4.7(30 reviews)

Functional Fitness BoxCrossFit

The official website returned errors in every check, so prices, schedule and facilities could not be confirmed. Check the gym directly before you plan a visit.

Best for: Local training

Grays www.CrossFitThurrock.com +44 7782 358249

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Which Grays Gym for Which Athlete

HYROX prep

CrossFit Orpington

It runs dedicated Hyrox classes alongside barbell and gymnastics training, with on-site parking and a short walk to St Mary Cray station.

On a budget

CrossFit 13

A single drop-in session costs 15 GBP, the lowest published rate in the region.

Olympic lifting and conditioning

CrossFit Against the Fire

The timetable includes dedicated Olympic Weightlifting sessions and HYROX workouts seven days a week.

Open gym training

Two Tails CrossFit

It schedules dedicated Open Gym access alongside its regular coached CrossFit programming.

CrossFit and HYROX in Grays: The Guide

Where the gyms are

The functional fitness landscape covers both banks of the Thames Estuary and stretches into suburban Essex and Greater London.

Grays: CrossFit Thurrock serves athletes based directly within the town itself.
Kent and Southeast London: South of the river, NWK CrossFit operates in Gravesend, while CrossFit Against the Fire is located further west in Erith. CrossFit Orpington sits near St Mary Cray station, within a short walk of rail links into central London, and provides on-site parking.
Essex: North of Grays, Two Tails CrossFit operates in Wickford, and CrossFit 13 is located in Hutton near Brentwood.

Getting between these facilities requires crossing the Dartford Crossing if you travel between Essex and Kent. Plan around crossing traffic if you cross the river during morning or evening peak hours. Rail travelers can use national rail lines into St Mary Cray station to reach CrossFit Orpington directly.

What a drop-in costs

Drop-in rates range from 15 GBP to 20 GBP for standard coached classes, with a median cost of 17.5 GBP across gyms with published single-session rates.

Single class: CrossFit 13 charges 15 GBP for a one-off session, arranged by contacting the gym directly. CrossFit Orpington charges 20 GBP per drop-in.
Weekly passes: CrossFit Orpington offers a 7-day week pass for 50 GBP. Two Tails CrossFit lists a 7-day trial for 25 GBP, which is refundable upon joining as a member.
Monthly memberships: Unlimited monthly memberships run from 130 GBP at CrossFit 13 to 154 GBP at CrossFit Orpington. CrossFit 13 also sells a twice-weekly option for 105 GBP.

Booking processes vary by location. CrossFit Orpington requires visiting drop-in athletes to have prior CrossFit experience, as beginners must complete an onboarding program first. CrossFit 13 accepts drop-in inquiries directly through direct contact before arrival. CrossFit Against the Fire routes incoming athletes through an initial consultation request rather than an instant online booking portal.