Hi

I have been asked to draft a waiver for certain people/groups who use my company's property, such as photographers.

The public have a right of access to the land at all times.

Are waivers etc. legally workable, or is there no point having them?

Thanks

Duties of care required under statute cannot be signed away.

For the type of (risk acceptance) waivers I think you may be elduing to (typically in sky-diving, scuba-diving, paragliding, bungee jumping etc.) you need a solicitor as the text should be clear, communicable and well understood. Even then any negligence on the part of your company would invalidate such a document.

Given there is a public right of access it is unlikely there is anything of sufficient risk to warrant notification by waiver and justify administrative burden.

You can't for example use a waiver to stop someone suing over a cracked footpath or potholed road

The Unfair Contract Terms Act 1977, S2 (1) states that you cannot exclude liability for death or injury.  This makes any waiver/sign meaningless and will not reduce your liability to a claim of negligence.  

As Roundtuit states it maybe possible to limit your liability for activities where both parties are aware of, and accept any potential risk.  However this would be in very specific cases such as a stuntman for example, but even in this case you would have had to have gone through a fairly comprehensive risk control process to avoid a claim of negligence.