Cadw also grant-aids Heneb; the Trust for Welsh Archaeology who often have opportunities for volunteers to get involved with Welsh heritage, including sites along the coast.
Mae Cadw hefyd yn rhoi cymorth grant i Heneb: Ymddiriedolaeth Archaeoleg Cymru sy'n rhoi cyfleoedd cyson i wirfoddolwyr ymwneud â threftadaeth Cymru, gan gynnwys safleoedd ar hyd yr arfordir.