The New Zealand coast is frequently pounded by ferocious surf and even strong swimmers can find themselves in difficulty in what may seem benign conditions. Every day throughout the peak holiday weeks (Christmas–Jan), and at weekends through the rest of the summer (Nov–Easter), the most popular surf beaches are monitored daily from around 10am to 5pm. Lifeguards stake out a section of beach between two red and yellow flags and continually monitor that area: always swim between the flags.
Before entering the water, watch other swimmers to see if they are being dragged along the beach by a strong along-shore current or rip. Often the rip will turn out to sea, leaving a “river” of disturbed but relatively calm water through the pattern of curling breakers. On entering the water, feel the strength of the waves and current before committing yourself too deeply, then keep glancing back to where you left your towel to judge your drift along the shore. Look out too for sand bars, a common feature of surf beaches at certain tides: wading out to sea, you may well be neck deep and then suddenly be only up to your knees. The corollary is moments after being comfortably within your depth you’ll be floundering around in a hole, reaching for the bottom. Note that boogie boards, while providing flotation, can make you vulnerable to rips, and riders should always wear fins (flippers).
If you do find yourself in trouble, try not to panic, raise one hand in the air and yell to attract the attention of other swimmers and surf rescue folk. Most of all, don’t struggle against the current; either swim across the rip or let it drag you out. Around 100–200m offshore the current will often subside and you can swim away from the rip and bodysurf the breakers back to shore. If you have to be rescued (or are just feeling generous), a large donation is in order. Surf lifeguards are dedicated volunteers, always strapped for cash and in need of new rescue equipment.