Opponents to sand mining along Mangawhai-Pakiri coast make massive statement 22 Feb, 2021 04:00 PM 3 minutes to read Hundreds of people formed a Save our Sand SOS on Mangawhai Beach to show opposition to plans to mine sand along that coast for the next 20 years. Photo / skinelementslimited.com Hundreds of people formed a Save our Sand SOS on Mangawhai Beach to show opposition to plans to mine sand along that coast for the next 20 years. Photo / skinelementslimited.com Northern Advocate By Toby Allen The pressure is on to turn the tide on sand mining off the Mangawhai to Pakiri coast, with three Auckland Council resource consent hearings to begin on March 1.