take a smoker, coz me and dad made mum sit at tent door on bad days ..
take lots of water and cookers – boiling pans of water in front of tent door does appear to stop them
if nice weather I would camp in the open on top of a hill as wind can keep them down – avoid damp areas/long grass etc
for biking(*edit – walking and existing) take total cover gear – longs/long socks 3/4s, full tops, long gloves and a midge net that fits over helmet – looking like a tw*t is a lot better than being eaten alive on a slow uphill grind