Described as one of New Zealand's finest rock climbing and bouldering locations, it's also one of the most accessible. About 20 min drive from Smylies, Castle Hill features five areas with around 250 climbs and well over 1000 plus boulder problems.
The quality of the Limestone and the ability to climb virtually all year make the Castle Hill climbing area very popular through the year.
try a few off the links below to give you more idea's and info:
http://www.climb.co.nz/Places/Canterbury/CastleHill/Castle-Hill-Climbing.htm
http://www.tota.co.nz/castlehill/index.html
http://www.mojozone.co.nz/climbing-location/castle-hill
http://www.mojozone.co.nz/climbing-location/castle-hill
http://www.doc.govt.nz/templates/ActivitiesSummary.aspx?id=35401
http://www.jagged-globe.co.uk/jg/forums/t.php?t=100949
http://www.frontrangebouldering.com/reads/articles/articles.html

