U.S. citizens can now travel to Cuba for family visits, professional research, religious activities, humanitarian efforts, performances, sports, journalism and academic activities under revised regulations. Travelers should be aware that Cuban currency cannot be purchased in advance, there are two currencies in use, and power outlets require adapters. Internet access is highly regulated and expensive, so travelers should not expect to get work done requiring internet access. The pace in Cuba is more laid back, so buses and tours may not be exactly on time. Bottled water is recommended instead of tap water, and there is a $25 departure tax paid in cash at airports.