Rail link gives a big boost to Kenya tourism

$3.8 billion line is largest investment since country's independence in 1963

Sarah Kabu, the managing director of a travel company in Nairobi, is ebullient about Kenya's Mombasa-Nairobi Standard Gauge Railway.

Passenger demand for the railway, also known as the Madaraka Express, has surged for the days before and after Easter, a major Christian holiday, which falls on April 21 this year.