The night-time event takes visitors on a walk through the zoo grounds – although avoiding many of the animals – to show winter lights, lasers and light projections sparkling under the dark South Downs skies.
There are light-up moon chairs, a light tunnel and the hall lit up beautifully, with a 23ft Christmas tree outside.
The trail is just over a mile long, and features reindeer, nutcrackers, snowflakes and stars.
For more information and booking visit www.marwell.org.uk/Christmas
Entry to the trail is not included in a day ticket, and vice versa. Glow tickets have to be booked in advance and it is open until December 30.