range of hotspots

hi, there's a restaurant about 300-500 metres away that has a hotspot, is there a way i can get the signal from their hotspot from my location? some kind of antenna-booster maybe? and where can i find this if possible or make or assemble one?

Google answers all. Probably what you might be looking for is something like this or a Pringle can antenna (although that's more often used for routers/AP)