Some councillors say the money would be better spent on existing sporting facilities and housing, especially when a white water rafting centre is already planned for the area.
It would be located near the planned white water rafting facility in the city.
Dublin City Council says this would develop Custom House Quay into a hub for water based recreational activity.
The council will present the plan to councillors next week for their views.
Significant Rail Disruption For Wicklow Passengers This Weekend
Bray and Greystones are among eight DART stations that’ll be closed for works.
Simon Harris Commits to Four Years of Income Tax Relief
Tánaiste announces plan to raise higher tax threshold annually ahead of Fine Gael think-in
Education Minister Hails Coláiste Bhríde as 'True Community Hub' for South Wicklow
Minister Hildegarde Naughton visits Carnew school to celebrate its central role serving 15 feeder schools across the region
Bray Dip for Jigsaw Returns This Weekend
Funds raised support Jigsaw’s free services for young people in Co. Wicklow.
Criminal Legal Aid Certificates Tumble In Bray Following Introduction Of Legal Aid Scheme
Minister's scheme blamed for dramatic drop leaving defendants without representation
10:00pm - 1:00am
Relaxing favourites with Traic O'Braonain
Medium-level cloud
High: 19°C | Low: 16°C
Medium-level cloud
High: 19°C | Low: 15°C
Sunny intervals
High: 21°C | Low: 14°C
Sunny intervals
High: 22°C | Low: 15°C
Sunny intervals
High: 22°C | Low: 15°C