The usual EDENZ website has been taken down due to security issues.

A temporary replacement has been created under the NIWA Neon system
http://neon.niwa.co.nz/logon.aspx?u=edenz&p=edenzuser 

This web site provides access to plots of near real-time data from NIWA's automated monitoring network.

This data is provisional only. NIWA makes no representations or warranties regarding the accuracy of the Data or its fitness for any purpose and will accept no responsibility or liability for the consequences of its use.

Validated archive data are available on request by emailing edenz@niwa.co.nz