Oct-Mar: The museum is now closed and only available to be opened for pre-arranged group visits of 10 or more with a notice period of least 2 weeks.
Hydref-Mawrth: Mae'r amgueddfa bellach ar gau a dim ond ar gael i'w hagor ar gyfer ymweliadau grŵp a drefnwyd ymlaen llaw o 10 neu fwy gyda chyfnod rhybudd o bythefnos o leiaf.