Tekapo is a tiny lakeside village you visit for the turquoise lake, the iconic Church of the Good Shepherd and world-class stargazing at Mt John, so plan your days around those priorities. It is easiest to get there by car from Christchurch, roughly a three hour drive, and you should book accommodation and any observatory or stargazing tours well in advance in peak season because options are limited. Arrive early for Church of the Good Shepherd photos and nearby parking, bring warm layers even in summer because nights are cold, and pack sunscreen and a water bottle for short walks. If you want to soak, Tekapo Springs has hot pools and night sky experiences; if you prefer self-guided stargazing, expect limited cell service at Mt John and bring a torch and extra warm clothing.