As an Iceland passport holder, you'll be pleased to know that travel to Japan is remarkably straightforward, allowing for a visa-free stay of up to 90 days for tourism. While there are typically two distinct tourist visa categories available for longer stays or specific purposes, your standard passport allows for this extended, hassle-free exploration. When planning your journey, consider that direct flights from Keflavík to Tokyo often take around 12 hours, a significant leap across time zones that might require a day or two to adjust. Keep in mind that while the Yen is the local currency, many businesses in major tourist hubs now readily accept credit cards, though having some cash on hand is always wise for smaller vendors or local markets.