Derwent River Relays, organised by Belper Harriers. The event is based at Belper Rugby Club. This year's event is on Sat. 7th July, with a fun run at 1.30, followed by the relays at 2.30. It's team of 4, with a 5K lap, mostly along riverside footpaths. There is usually a bar and burger van, etc. and room for a picnic (weather permitting). There is usually a great atmosphere. There are numerous team categories. More details can be found on www.belperharriers.wordpress.com . The…