Some feedback re suggestions for Happy Valley improvements from me would be:
1) Water feature - Can it be brought back into proper working order, ie. with the top cascade working? Perhaps an alternative means of powering the pump, maybe solar panels on roof of gardeners hut?
2) LLANDUDNO flowerbed - can the concrete be removed and summer bedding plants be reinstated?
3) Summer bedding - in recent years, quite a few of the flower beds that formerly contained summer bedding plants have been replaced with shrubs - can a few of them be brought back into use?
4) Rockeries - the upper sections of the gardens are not as well maintained as it could be, with areas of missing planting and usage of inappropriate species such as Buddleia. Happy Valley used to be renowned for its rare plants & shrubs, maybe a complete review of the planting within the gardens and a forward plan to restore it to its original glory?
5) Funding for projects - try contacting WREN (they have already contributed towards Queens Park, Craig Y Don, improvements*), Town Council, Mostyn Estates and get local businesses to sponsor specific features within the Park.
* -
http://www.wren.org.uk/projects/craig-y-don-queens-park-improvements