s4(4) Notwithstanding subsection (1), where a structure on premises is or has been provided for use primarily by recreational users, the occupier shall owe a duty towards such users in respect of such a structure to take reasonable care to maintain the structure in a safe condition:
Provided that, where a stile, gate, footbridge or other similar structure on premises is or has been provided not for use primarily by recreational users, the occupier's duty towards a recreational user thereof in respect of such structure shall not be extended by virtue of this subsection.