As a Japan passport holder, you'll find entry into Timor-Leste straightforward with a visa on arrival, allowing for a comfortable 30-day stay perfect for exploring its burgeoning tourism sector, with the single available visa type being for tourism. This visa on arrival process simplifies your journey, and while direct flights are uncommon, connecting flights typically route through hubs like Singapore or Bali, so factor in potential layover times when planning your adventure to the eastern half of the Indonesian archipelago. Be sure to have United States Dollars handy, as it's the official currency in Timor-Leste, and familiarize yourself with basic Tetum phrases, as English proficiency can vary outside Dili, enhancing your experience beyond the typical tourist trail.