Take the overnight train from Montréal to Halifax
Give eastern Canada its own rail journey, with time in Montréal and Halifax on either side.

An overnight train gives a journey a beginning, a middle and a morning. You leave one city, spend part of the trip away from your ordinary routines and arrive somewhere you intend to explore. VIA Rail’s Ocean makes that a distinct eastern Canadian ambition: travel from Montréal to Halifax, then give the destination some time.
This is a complete experience in its own right. It does not need to be the final leg of an enormous cross-Canada itinerary. Someone with an interest in the two cities and a wish to sleep aboard a train can build a satisfying trip around this one passage.
Choose the overnight experience you want
Destination Canada identifies the Ocean as the Montréal–Halifax route, with an overnight journey through eastern Canada. Its summary is useful for understanding the shape of the trip; use VIA Rail’s actual booking information for your date, duration and accommodation. Destination Canada rail overview
Decide what you mean by sleeping on a train before comparing prices. An overnight journey in a seat and a journey in sleeping accommodation are different purchases. Look at the exact product offered for your departure and ask how the bed, bathroom arrangements, luggage and any assistance work.
Check meals against the ticket rather than assuming all services bearing the same train name have identical inclusions. The photograph of an attractive dining space may be part of what draws you to the trip, but the quote should explain what you are actually buying. VIA Rail Ocean information
Let the cities become part of the story
An overnight stay before departure gives Montréal room to be more than a station connection. You might choose a market visit, a meal or time in a neighborhood, then begin the train journey without having crossed half the city against the clock.
At the other end, plan to stay in Halifax. VIA Rail’s own city account describes arriving from Montréal aboard the Ocean and exploring Halifax without a car. Use it for ideas, then check the places and transport that fit your interests. A car-free Halifax visit
Avoid attaching a critical flight, cruise departure or other non-flexible booking immediately to the scheduled arrival. You are choosing a substantial rail journey; give it the breathing room that makes that choice enjoyable.

Enjoy the time between plans
Bring one book you would like to read and leave some time unassigned. A train trip can be sociable, contemplative or a mixture of the two. You do not need an elaborate program of things to accomplish while the scenery passes.
Consider the season and daylight when choosing direction and date, but do not promise yourself that a particular view will coincide with perfect light. Weather and operating conditions remain part of the experience.
Take a few notes about the transition from departure to arrival: what it felt like to settle aboard, something you noticed before sleeping and your first impression of the morning. Those may become more personal memories than a list of places the train passed.
The ambition ends when you have arrived and begun to enjoy Halifax. What makes it worth doing is choosing the journey as part of the trip, rather than treating the overnight hours as time to be eliminated.