Start with the stay other plans depend on.
The first hotel’s checkout date may set your next train date. Confirm the rooms and cancellation terms before moving on.
Booking help
Know what to book next, what depends on it, and which details to check before you pay.
Start your tripBooking help is part of paid access, which is not open yet. You can explore a route free.

Your trip becomes an order to book in, with the details to take with you.
The first hotel’s checkout date may set your next train date. Confirm the rooms and cancellation terms before moving on.
Use the known dates, stations and passenger details. Check departure times, seats and ticket terms before paying.
Record what you booked and compare the details with your plan. See anything that still needs checking.
An example booking order. Your queue depends on your trip and the details available.

Two rooms. The right child ages. A seat for everyone. Keep those requests with the dates, so you know what to ask the supplier.
A room request still needs the hotel’s confirmation. Seat choices and ticket terms are checked with the train operator.
Read the booking guide