Avalon is the legendary resting place of Britain’s King Arthur. Tradition has it that it was also famous for its apples and this feature led some to link it with the legend of the Hesperides considered another name for Atlantis. This linkage of Avalon with Atlantis is extremely tenuous. The apple connection is also suggested by the Welsh for Avalon which is Ynys Afallon, possibly derived from afal, the Welsh for apple.
Pliny the Elder in his Naturalis Historiae (xxxvii.35) named Helgoland as ‘insulam Abalum’, which has been suggested as a variant of Avalon. Other locations such as Sicily and Avallon in Burgundy have been also been proposed. A series of YouTube clips(a) bravely links Avalon, Mt.Meru and Atlantis, which is supposedly situated in the Arctic!
The isle of Lundy in Britain’s Bristol Channel has been speculatively identified as Avalon(b).>Other leading contenders are the Isle of Man and Glastonbury(c).<
(c) Avalon: A Real Island Obscured by Legend, or Just a Legendary Island? | Ancient Origins (ancient-origins.net) *