This particular one (at left) was designed by Solomon Baldock as part of a Sea Week competition.
Dunedin City Council parks officer Renee Gordon said yesterday signage was going up now at council-managed beaches, and had already been erected at Tomahawk, Brighton and Waikouaiti.
The frames of the signs were made to allow the sticker-based signs to be changed easily so relevant issues could be highlighted.
Ms Gordon said existing signs encouraged visitors to take their rubbish with them, but if sea lions were to become an issue, for example, signs could go up informing the public to stay clear of the animals.
"Hopefully, it will make people pay a bit more attention," she said.