www.obandivers.co.uk/ The site i found was easy to find when entering oban as it was clearly signposted. The road up once through the town was a single road with passing places.
The site is good you get the usual showers , toilets , drying room , etc.
Showers are free here , elec hookup, tv points "only1,2,3,4 stations". Tents can get elec hookup as well here. As it was just outside easy shopping tesco , argos , homebase plus the usual gift shops & pubs.
There is plenty of places to go and visit all within 1hr drive of here. Sea fishing is good here with marks only 2 mins away by car. Species are mackerel , dogfish , pollack , coalfish , spurdogs etc.
chris -- what rain depends on what time of year i go mostly during the summer. i only had a few rain showers ;D ;D trooper - yes no dogs i guess since a lot of birds roam through the site you even might see golden eagles never seen them this year though plus sheep roam the hills and on the main road as well.