Esmarkbreen, a majestic glacier near Longyearbyen, is predominantly visited via guided boat tours during Svalbard's summer season (typically June-September) when the fjords are navigable. Independent access is impractical and unsafe, making guided excursions essential. While the actual viewing time at the glacier face might be 30-60 minutes, it forms part of a longer 8-10 hour day trip from Longyearbyen. Costs typically range from 1,500 to 2,500+ NOK per person for these comprehensive tours, which often include meals and other scenic stops. Visitors should be prepared for Arctic weather conditions even in summer and adhere to tour safety guidelines to fully appreciate this stunning, wild landscape.