These days I watch the tide charts. There's a dramatic difference at Waikawa Beach between mid-lunar month (low variation) and full (super) moon (high variation).

Tides for 25 August 2023 show low highs and high lows.
Tides for 25 August 2023 show low highs and high lows.
Tides for 01 September 2023 show high highs and low lows.
Tides for 01 September 2023 show high highs and low lows.