Surf life savers at Raglan responded to more than 50 first aid incidents over the weekend, many of which were bluebottle stings as holiday-goers flocked to the beach in the hot sun.
The Raglan Surf Life Saving Club had to extend its patrol hours as beach numbers remained high well into the late afternoon.
Surf Life Saving New Zealand (SLSNZ) confirmed there were 58 bluebottle stings on Sunday in Raglan.
Elsewhere, Piha recorded four stings on Saturday, Muriwai had one sting on each Saturday and Sunday, while Bethells Beach and North Piha also had one sting at their beaches on Saturday.
SLSNZ CEO Steve Fisher said bluebottles are common as the water warms up.
"There are many hazards at the beach and in the water that aren't related to ocean conditions," he said.
Fisher said the stings combined with hot sand kept the lifeguards busy, and reminded the public to be vigilant.
"While encounters with bluebottles and hot sand are generally not life-threatening, they can be extremely painful," he said.
"We encourage beachgoers to stay informed and check the Safeswim website before heading to the beach, for both conditions and any hazards that may be present."
It also serves as a reminder for all members of the public to carry EpiPens if they are allergic to jellyfish.
Surf lifeguards at Raglan also responded to two surfers struggling to make progress in a rip current, using a rescue board to reach the surfers and then assist them in returning to shore.
This involved helping one young surfer to catch a wave and coaching the other out of the rip so they could get back to shore.
Over the weekend, surf lifeguards spent more than 6800 hours volunteering to keep thousands of swimmers and beachgoers safe, performing more than 550 preventative actions.
