Here are the routes Dave Newman has selected for our four-day tour. Click on the links for maps and sketches:

Salisbury Map
Salisbury Sketch
Wiltshire Map
Wiltshire Sketch

Tour report

Friday 15th May 
Depart Plympton 0930 and meet 1100 at Cartgate Services on the A303 (approx.84 miles) Continue to Countess roundabout just past Stonehenge. I suggest that we park in the public car park at Amesbury and head into the pretty Avon Valley through the Woodfords where, at Stratford sub Castle, there is a choice of visiting Old Sarum (0.5 m) or * continuing into Salisbury where we could eat our sandwiches by the river and be free to enjoy the City (Cathedral Close, shops e.t.c.) The return ride back to the cars can be achieved largely on quiet lanes via Old Sarum, Winterbourne Gunner, across Boscombe Down to the A345 with just a short distance back to Amesbury. (20 miles)
*This could be discussed at coffee

Saturday 16th May 
Once the Test Valley has been reached (approx 13 miles) at The NT property of Mottisfont Abbey there is a very gradual climb into the Berkshire Downs (another ANOB) with a short easy return leg through quiet lanes back to the Hostel.
More than half of the route follows the magnificent Test Valley and its' quaintly named tributary, the Bourne Rivulet. These valleys provide delightful cycling with easy, flat lanes, lovely views of the rivers and a succession of attractive villages where each house seems to offer a more dazzling display of flowers than the last! From the pretty villages along the Bourne, of which Ibthorpe is often claimed to be the most attractive in Hampshire, there is a slightly more pronounced climb up and around Haydown Hill and along the Roman Chute Causeway as the ancient road from Cunetio to Winchester makes a spectacular curve as it bears south and east to avoid the deep Hippenscombe Valley to regain a point from which it could continue in a straight line. The route back to the Hostel is an easy meander through Duck Street, Ragged Appleshaw, Fyfield, Thruxton and Quarely all on minor roads. (approx 55 easy miles) 
N.B. The route from coffee (the river valleys) is suitable for the whole group with, perhaps, a return from Hurstbourne Tarrant to avoid the foray into the Berkshire Downs.

Sunday 17th May 
This ride is a rare opportunity to traverse Salisbury Plain with its' extensive views and evidence of Army activity. Further pleasure accrues from a gradual descent of the popular (with cyclists that is!) Wylye Valley from Codford St.Mary to the historic town of Wilton. From here the ride crosses a low watershed south into the lovely Ebble valley where it goes east through Oddstock  and Nunton and follows the River Avon to the first available bridge at Downton, then back north to Alderbury. The route enters a military landscape passing the research units of Porton Down to the Winterbourne Valley and a few miles back to the Hostel (approx. 58 miles)
There is a slight cost to this iconic ride - a mile and a half ride along the A303 as far as the Solstice Services where a bridge takes you north across the dual carriageway to Bulford and then westwards through the army town of Larkhill. The important thing is we don't have to cross the carriageway unprotected. 
N.B. The route could be cut short by returning from Wilton either by crossing the watershed to the north into the Avon Valley just below Lower Woodford or along the minor road to Salisbury and out through Laverstock and The Winterbournes. 

Monday 18th May 
To be decided but a suggestion might be to park at Cartgate where a 28mile circular route could be taken partly on The Somerset Levels and quiet lanes through a number of picturesque villages such as Kingsbury Episcopi, Barrington, Seavington St.Mary, Stoke sub Hamdon and the market town of Ilminster.