The Rattanakosin – Old City district is the oldest part of Bangkok. It’s home to its most famous historical attractions such as the Grand Palace, Wat Phra Kaew, Wat Pho, and the National Museum. Wat Arun is a short ferry ride across the river. It’s full of heritage buildings with no high-rise development.
It’s easy to navigate with short distances between places of interest. The area is walker friendly, though taxis and tuk-tuks are not expensive for short hops. Cyclists are catered for with dedicated bicycle lanes on some streets. Nightlife is limited in the old city though Khaosan Road is nearby with its buzzing nightlife and cheap dining. Sleeping options are limited though there are some nice boutique style riverside hotels. Cheaper accommodation can be found in the nearby backpacker quarter of Khaosan Road.
Getting to other parts of the city quickly can be slow. The volume of traffic is heavy, especially during rush hour. Local public transport is limited to buses, taxis, and tuk-tuks. There is no MRT or BTS. The Chao Phraya Express Boat service is great for getting along the river. The Khlong Saen Saep Express Boat can whisk you to the Ratchaprasong shopping district quickly.