Samui police were alerted of the fatal accident on the uphill road in Ban Mae Nam village in Tambon Mae Nam of Samui district at 6.30pm. 
The tourist was identified as Zurab Dzhakhua. He suffered a severe head injury after his head hit a rock a deep ditch, police said. 
Friends told police that Dzhakhua was riding a rented motorcycle alone to take photos of the sunset from the top of the mountain road but his motorcycle somehow fell into a ditch on the roadside. 
Police suspect he lost control of the bike while riding the steep road.

Russian tourist killed as motorcycle falls into ditch

A 35-year-old Russian tourist was killed when his motorcycle fell into a roadside ditch on a steep section of mountainous road on Koh Samui in Surat Thani on Wednesday evening.