Use the quicklinks below to jump to the desired section regarding transport in and around Kep.
If coming from Phnom Penh, note that Kep and Kampot, while relatively close, are reached by different roads. For both, Phnom Penh is left via Route 3 (which leads all the way to Kampot), but not long after the turn-off to Takeo, one needs to bear left on Route 31 which runs via Kompong Trach to reach Kep. Many buses service one town first then make their way to the second, so it's worth checking the route. Kep and Kampot are connected via the sealed Route 33 which runs not far from the coast and is being widened and remade in 2014.
Kep is easily reached from Kampot by tuk tuk ($15-$17 return) and motodop ($8-$10 return), with the trip taking 30-45 minutes. Daily buses run morning only, costing $2.50 and taking about an hour. A private taxi should cost around $20 and take at least 30 minutes each way.
A bus to Phnom Penh costs $6.50 with an alleged journey time of 4 hours. For a quicker trip of about 2.5 hours, a private taxi can be secured for $40. VIP minibuses don't currently service Kep, so if you want a more comfortable ride but don't want to fork out for a taxi, try transferring to Kampot to catch the Giant Ibis or Kampot Express.
Heading east to the Vietnamese border, a moto ride costs $10-$15, and the trip takes about an hour to 90 minutes, depending on road conditions. Ferries from Ha Tien in Vietnam leave at 10:30 and midday for Phu Quoc island, so if you plan to make the journey in one day, get going early.
Boats to Ko Tonsay leave from a pier around 1km east of Kep Beach from 09:00 to 17:00. A roundtrip boat ticket costs $7 or you can rent the full boat for eight to 10 people for $30 one way. If you don't come in a group, expect to wait for as long as it takes for additional passengers to show up or pay the full hire price yourself. Tickets can be pre-booked at the travel agencies near the bus station, or directly at the pier.
You can rent a motorbike from most guesthouses from $5 per day, expecting to spend another $2.50 on gas. This is a nice way to have the freedom to explore some of Kep's back roads or take a day trip to Kampot.
Bicycles may come as complimentary from your guesthouse, and if you're a passionate pedal-pusher they're a great way to get about, but downhill is always more fun than getting back up.