What are the most worthwhile things to do in Siem Reap on a first visit?

Angkor Enterprise sells four separate park tickets, and travelers routinely assume one covers everything. The Angkor Temples Park pass covers more than fifty accessible temples: $37 for one day, $62 for three days spread over a week, $72 for seven days spread over a month. Koh Ker Temples Park, with more than ten accessible temples, is a separate $15 one-day ticket. Beng Mealea is its own $10 ticket. Kbal Spean is $5.

That structure rewards planning. A single $37 day forces a compressed loop; the $62 pass lets you take a rest day in the middle without losing value, since only the days you use are counted. Koh Ker and Beng Mealea sit well outside the main park and admit from 6:00 a.m. rather than 5:00 a.m.

The town itself is the second half of a first visit. Siem Reap functions as the service settlement for the archaeological park — its market quarter, river walk and craft workshops exist on a scale no Cambodian town of its size would otherwise support. The Siem Reap–Angkor International Airport, opened in 2023 and sited roughly 25 miles east of the town, moved jet traffic away from the monuments, which changed both the approach into the region and the drive times from your hotel.

Siem Reap is low-built and laid out along a narrow river, so almost everything in the center is within a twenty-minute walk and the skyline stays below the palm line. Outside town the roads run dead flat through scrub and rice ground, and the distance between temple groups is measured in tens of minutes of driving rather than in climbing.

Angkor was inscribed under all four of the cultural criteria then available — (i), (ii), (iii) and (iv) — which is rare and is the reason the protected zone is enormous rather than monument-sized. Practically, that means your pass is a zone entry, checked at road barriers, not a ticket to a building: you can be stopped and asked for it well away from any temple.

• Day one — Stay inside the main park. The $37 and $62 passes both cover it, and the 5:00 a.m. opening favors an early start.
• Day two — Go out to Koh Ker or Beng Mealea on their own tickets, accepting the 6:00 a.m. gate and the longer drive.
• Day three — Keep it in town, which costs nothing against your pass and uses a day the seven-day window gives you anyway.

Every visit depends on a Cambodian visa, which US citizens must hold; it runs one month from entry, so a long regional itinerary needs checking against that limit rather than against your flight dates. The multi-park ticket structure means a day trip you assumed was covered may not be. Gate closing at 6:30 p.m. is firm, and the outer parks are far enough from Siem Reap that a late start can cost you the site rather than just the light.

The food-and-drink question in this group covers where the town's eating happens once the park gate shuts for the evening.