This cache is just opposite Victoria Park and is just outside Portslade cemetry. The cemetry is great if you want a nice peaceful place to visit, there are occasionally people around doing groundswork but other than that it is a relatively quiet place.
The cemetry is open 9am-5:30pm Mon-Fri & 11am-5:30pm (April to September) and 9am-4pm Mon-Fri & 11am-4pm (October to March). The cache itself is available 24/7.