I recently returned from a weekend of wine tasting in Niagara. Here are a few gems to try:
Fielding - nice chardonnays, riesling reserve and meritage reserve. Also reasonably priced late harvest and icewines.
Henry of Pelham - lots of very nice wines, especially Baco Noir & reserve. Gamay is quite nice and late harvest wines.
Lailey - late harvest and icewines
Harbour Estates - very reasonably priced
Tawse - exceptional chardonnays, but a bit pricey. Also, the Carly's Block Estate Riesling.
Stratus - very good wines, but quite pricey.
Cave Spring - always worth a visit for the CSV wines (especially Riesling)
DO have lunch at Zumma Zumma across the street - excellent sandwiches.
DO dine at Wellington Court in St. Catherines - exceptional, good service.
Peninsula Ridge - Sauvignon Blancs are quite good