Bydd Dŵr Cymru hefyd yn datblygu anturiaethau awyr agored i bawb yng Nghronfeydd Lliw gyda gwelliannau mynediad a meysydd parcio, gorsaf weithgareddau a thaflenni llwybrau natur yn ogystal â gosod offer chwarae naturiol.
A changing places unit will also be a priority for Welsh Water as part of a project to develop a cycle hub at their Elan Valley site. Welsh Water have also be awarded funding for the development of waterfall swing and water artistry at Llyn Brenig. The waterfall swing uses hundreds of downward jets of water to create a controllable waterfall effect which incorporates swings and can also be adapted to take users with limited mobility, including wheelchairs. Welsh Water will also develop outdoor adventures for all at Lliw reservoirs with access and car park improvements, activity station and nature trail sheets as well as installation of natural play equipment.