Here’s how to plan the perfect trip to Yokohama.Credit: SeanPavonePhoto/Adobe StockStep back in time to 1920s Japan at the Hotel New Grand, a stately property just steps from Yamashita Park.Soak in mineral-rich hot spring pools while taking in views of the bay at Manyo Club.Savor a chef-curated sushi tasting made with locally sourced seafood at the intimate Noge no Onikai in the city’s buzzy nightlife district.Create a custom instant ramen and d…