From Whiteladies Rd . Turn into Tyndalls Park Road, (note: driving up Whiteladies Rd, there is no right turn into Tyndalls Park Rd). . Continue till you arrive at the ‘T’ Junction. . Turn left and immediately right at the roundabout into Cotham Rd. . Continue to the next ‘T’ Junction (just after the zebra crossing). . Turn left. . Take the second left into Cotham Grove, which leads to Archfield Road. . The Observatory is No.4, on your left, next to Archfield Day Nursery. From Cheltenham Road: . At the Redland railway arch roundabout, turn into Cotham Brow. . Take the sixth turning on the right, which is Cotham Grove. . This leads into Archfield Road. . The Observatory is No.4, on your left, next to Archfield Day Nursery. Please use the basement entrance, rather than the front door to the house. The basement door is usually on the latch, just walk in and take a seat in the waiting area. There is ample free parking in the local area.