There are many great vineyards near Bologna.
Here are some tips:
Vineyard stay:
Azienda Agricola San Giovanni in Monte - A winery producing Lambrusco wines, offering guided tours and wine tastings.
Podere San Giuliano - A vineyard that produces organic wines, and offers tours and wine tastings.
Fattoria Monticino Rosso - A winery that produces Sangiovese wines and offers tours and wine tastings.
Beach holiday:
Rimini - A popular beach destination with many beaches, bars and restaurants.
Riccione - Another popular beach destination with many beaches, bars and restaurants.
Milano Marittima - An elegant and sophisticated beach destination with many high-end hotels and restaurants.
I hope this helps you and wish you and your traveling companions a great stay in the area!