Large Storage box

[Anthony1]

Have you considered a dry sack? I’ve got a Gumotex inflatable canoe, which comes with a dry sack back pack. I reckon it would easy to use nylon straps to secure to a bike rack.

Thank you - not secure though.

Campervan elastic sell one. It's like a large bag. About 200 quid

Thank you

 

[Anthony1]

Or even better something like this:
https://www.aluminess.com/mercedes/sprinter-2014-2015/rear-bumper/

Thank you

Found this today, worth a look.
https://www.autoexpress.co.uk/accessories-tyres/106025/best-towbar-mounted-storage-boxes

Thank you, some good stuff there

 

[Anthony1]

Might be something on this site. They do separate boxes for a Towbar tray system, but might be able to adapt.

http://www.bak-rak.com

A very belated thank you.