Vineyard - vineyards in the Philippines are rare and small
Delicious local grapes are available in smallest quantities only and usually only in the province of production. The only area with vineyards I have seen so far in the Philippines are from Bauang, La Union province up north toward Vigan and again in Benguet province outside Baguio city.
As far as I know there is no wine production or grape juice production from local grapes. The small but most delicious harvest of local grapes are sold on local markets in Bauang, San Fernando and Baguio city.