The Exotic Pet Refuge in Deeping St James has thanked all who supported its open day despite level crossing closures.
Network Rail halted maintenance work to open the Deeping St James crossing for the event.
But the Littleworth crossing in Deeping St Nicholas was closed for four hours longer than expected on Sunday.
A Network Rail spokesman said: “We apologise if this caused any confusion or problems to motorists.”
About 800 people visited the refuge on the open day, which raised £3,450.
The refuge recently opened its alligator house which proved popular on Sunday, as was watching the wolf at feeding time.
Cinders the monkey, Inca the lynx and Doris the Hornbill were the most popular animals on the day.
Visitors also enjoyed the refuge’s improved gardens.
Owner Pam Mansfield, said: “Thank-you the councillors who persuaded Network Rail to open the crossing, or we would not have raised a quarter of the money we did. It was really good of Network Rail to do it.
“Many thanks to local residents and everybody who supports us year after year.”