The Forest Gym - Home Page

The Forest Gym is the leading Hardcore Gym in Sussex for Bodybuilders, Powerlifters, Athletes and other Sportsmen and Sportswomen


Find out everything about the Gym, our Members and the Worlds of Bodybuilding & Powerlifting


Visit the Gym Any Time


Join Us and be coached by IFBB Pro Bodybuilder Harold "Big H" Marillier

Latest News

2 February 2015

Forest gym website has had more updates with added information on personal trainers pages.

21 January 2015

Well, I have finally have got to update this website. I must apologise for just leaving you with a lot of old news. I can tell you that things have been very active in The Forest Gym and everyone has been very busy.


We have been able to hold our fees constant for over 8 years. We have done this by watching costs and managed to increase the number of members. Unfortunatelly due to recent escalating running costs we have had no choice but to increase the membership fees, not a lot I will hasten to add. The gym is very busy with new members joining daily, with many showing an interest in competing.


Now that the UKBFF Finals are over for another year, we can review the achievements of athletes from The Forest Gym as well as others coached by me, Harold "Big H" Marillier.


We have a new Newsletter with competition reports and other bits of news from the gym, the grapevine and the internet. We also comment on current trends in the bodybuilding world and also whats happening in the various federations. This should be published shortly with any luck, so please keep checking in to see latest news and updates


Swanning Around the Caribbean X-mas 2014

Harold & Karen Marillier have just returned from a two week cruise in the Caribbean visiting many of the islands of the West Indies and being indulged with a five star service aboard ship. Something which, apparently, it is very easy to get used to. Harold can now get back into his full-time job of running the gym and coaching Bodybuilders from all over Britain.



Last year we celebrated 40 years of The Forest Gym. One of the founders was Ron Ball who has now retired completely, handing over the running of the gym to Harold “Big H” Marillier and Peter Vickery, both of whom have had many years involvement with Bodybuilding. The Gym has been going from strength to strength and everyone looks forward to another 40 years. Ron will still be around, hopefully for many years yet and will help out in the Gym when people are away or on holidays. 


UKBFF Finals 2015

See report on the success of The Forest Gym in our February 2015


Newsletter February 2015

Contact Us

The Forest Gym

Unit 26

Tilgate Recreation Centre


West Sussex

RH10 5PH


Opening Hours


Monday to Friday

10.30 am to 9.00 pm



3.00 pm to 6.00 pm



8.00 am to 10.00 am


All Bank Holidays

3.00 pm to 6.00 pm



Christmas Day 

Boxing Day


Any questions?

Contact us directly:


01293 -  537229


Or use our contact form.

What's new?

New Revised Web Site


Last Updated


2nd February 2015


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