<P> Over time , Waikīkī beach has had problems with erosion , leading to the construction of groynes and beach replenishment projects . For example , in the 1920s and 1930s sand was imported from Manhattan Beach , California , via ship and barge to Waikīkī . Importing stopped in the 1970s . Officials are looking for ways to sustain the existing sand by eliminating loss due to tidal flow . Subject to permits , a partial restoration was completed in the spring of 2012 . The proposed project imported sand from nearby shoals and widened the 1,700 - foot ( 520 m ) long beach by about 37 feet ( 11 m ) between the Royal Hawaiian Hotel concrete groyne and the Kūhiō Beach crib wall . The project restored the beach to its 1985 shoreline . </P>
<P> Over time , Waikīkī beach has had problems with erosion , leading to the construction of groynes and beach replenishment projects . For example , in the 1920s and 1930s sand was imported from Manhattan Beach , California , via ship and barge to Waikīkī . Importing stopped in the 1970s . Officials are looking for ways to sustain the existing sand by eliminating loss due to tidal flow . Subject to permits , a partial restoration was completed in the spring of 2012 . The proposed project imported sand from nearby shoals and widened the 1,700 - foot ( 520 m ) long beach by about 37 feet ( 11 m ) between the Royal Hawaiian Hotel concrete groyne and the Kūhiō Beach crib wall . The project restored the beach to its 1985 shoreline . </P>
where does the sand in waikiki come from
where does the sand in waikiki come from
Manhattan Beach , California
Manhattan Beach , California