Hello! It's great to hear that you're planning to visit Utrecht, Amersfoort, and Apeldoorn in the Netherlands. Here are some travel tips for you.

Best Time to Visit:
The best time to visit these cities in the Netherlands is from April to October when the temperature is mild and outdoor activities are most pleasant.

Route and Accessibility:
Start your journey in Utrecht, which is easily accessible internationally via Schiphol Airport in Amsterdam. From Utrecht, Amersfoort is only a 30-minute train ride away and from Amersfoort, it's a further 30-minute train ride to Apeldoorn. The train services in Netherlands are reliable and punctual.

Accommodation and Booking:
These cities offer a range of accommodations from luxury hotels to budget hostels. Booking in advance, especially for stays during the popular summer period, is advised to secure your choice of accommodation.

Clothing and Essentials:
Pack clothing suitable for mild to cool weather, including layers and a rain jacket, as the weather can be unpredictable. Walking shoes are essential as these cities are best explored on foot. Don't forget your power adapter, the Netherlands uses type C and F plugs.

Health and Safety:
The Netherlands is generally safe, but as with any travel, stay vigilant and aware of your surroundings. Standard European health insurance is accepted. The tap water is safe to drink in these cities.

Local Etiquette and Respect:
Dutch people value directness, punctuality, and respect for personal space. When entering shops, it's polite to greet the shopkeepers. Remember to keep your surroundings clean and respect the cycling culture by not walking on bike lanes.