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Barcelona to Cava & Freixnet then Castillo de Caena in Jaen without a rental car

Please suggest route /connections for two spry, male retirees, who want to taste sparkling wines of Spain at Cava & Freixent at the source. Then to Castillo de Caena in Jaen to taste olive oil & visit a farm that brines olives. From Jaen to Sevilla without renting a car.
Train,bus, ride share or other ways. All suggestions welcome.