Wat Yai Chai Mongkhon, situated in Ayutthaya, holds immense significance as one of the paramount temples in the region. Unlike numerous other ancient sites in Ayutthaya that remain as historical remnants, this temple remains an active place of worship, housing resident monks.

Thai individuals frequently visit Wat Yai Chai Mongkhon not only to show reverence to Buddha but also to pay homage to one of Thailand’s revered monarchs, King Naresuan the Great.

History of Wat Yai Chai Mongkhon

Historians speculate that the original site of Wat Yai Chai Mongkhon in Ayutthaya may have been an important Khmer temple complex. Over time, different temples were constructed in the area under various names. When Ayutthaya became the capital of Siam in 1350, King U-thong declared the site as the royal temple, known as Wat Chao Phraya Thai. After King Naresuan successfully defended against a Burmese invasion in 1593, restoration efforts were undertaken at the temple. It is believed that during this period, the main chedi was enlarged, and the temple acquired the name Wat Yai Chai Mongkhon, meaning the ‘Great Monastery of Auspicious Victory.’

Following the fall of Ayutthaya to the Burmese in 1767, the temple was plundered and left abandoned. It wasn’t until the 1950s that a monastery was reestablished on the site. Since then, significant restoration work has been carried out, resulting in the presence of mostly modern stone Buddha images visible today.

Architecture of Wat Yai Chai Mongkhon

The main structures of the temple which includes the main chedi, the main viharn and the ordination hall are aligned on an east-west axis. Around them are a number of subsidiary chedis of varying styles and conditions and the kuti, the monks’ living quarters. In the northeast corner are the remains of a viharn enclosing a very large reclining Buddha image.

Chedi Chai Mongkhon, main prang

In the heart of the temple, a raised platform proudly showcases the majestic main prang (chedi) along with two mondops. Each corner of the platform features a smaller version of the prang, adding to the temple’s grandeur.

An East-facing staircase leads visitors to the entrance of the bell-shaped chedi, which soars 60 meters in height. Those who ascend the staircase can explore the interior of the chedi. Inside a small chamber, multiple Buddha images adorned with golden leaf, offerings from devout followers, can be admired. Additionally, visitors can catch a glimpse of the excavated chamber where relics were once enshrined.

Flanking the chedi on the East side, two mondops, square brick buildings, house substantial seated Buddha images. These mondops stand as significant features, accentuating the chedi’s splendor and spiritual ambiance.

Main viharn

Adjacent to the main prang on the western side, connected to the galleries, lies the principal viharn, or assembly hall, of Wat Yai Chai Mongkhon. Only the base of the viharn has withstood the test of time. Positioned at the rear of the hall, facing westward, is a revered Buddha image placed upon a pedestal. Flanking the Buddha are Sariputta and Moggallana, the Buddha’s esteemed and closest disciples.

Reclining Buddha

Situated in the Northeast corner of the temple grounds, you will find the remnants of the Viharn Phra Phuttha Saiyat, also known as the Viharn of the Reclining Buddha image. This hall was originally built during the reign of King Naresuan. The immense Reclining Buddha image within the viharn is adorned with a yellow cloth and faces towards the East, welcoming the first light of the rising sun. Devotees have lovingly applied gold leaf to the image’s feet. The present-day statue is indeed remarkable, but it is a replica crafted during the 1960s.

Ordination Hall

Towards the Eastern side, you will find the ubosot, the ordination hall, of Wat Yai Chai Mongkhon. As an active temple, the hall continues to be utilized by monks and devoted individuals.

While the original walls and base of the hall remain intact, the roof has been lost to time. New walls have been constructed inside the old walls, providing support for a newly built roof. Within the hall, a revered image of the Buddha sits upon a pedestal. The sacred area of the ordination hall is marked by Sema stones positioned around the ubosot, signifying its sanctity.

How to get there

Wat Yai Chai Mongkhon is situated in the Phai Ling sub-district of Ayutthaya, located to the east of Route 3477, outside of the island area.

• By Car: Many tourists opt to hire a private car to reach the temple in Ayutthaya. The journey from Bangkok typically takes around an hour, and the cost for hiring a car is approximately THB 2500. The driver would need to head south from Wat Sam Plum and take Route No. 3059 to reach the temple.
• By Train: Another option is to take a train from Bangkok’s Hualamphong Station to Ayutthaya. From there, you can hire a tuk-tuk or other transportation options to reach the ancient temples, including Wat Yai Chai Mongkhon.
• By Bus: Buses and air-conditioned minivans are available from Bangkok to Ayutthaya. The journey takes approximately an hour and costs around THB 100.

Opening hours

Wat Yai Chai Mongkhon is open daily from 8AM to 5 PM.

Entrance fees

The entrance fee for non-Thai is 20 baht (free for Thai).

Tips for travelers

• Respecting Buddha images and statues is of utmost importance, and any act of disrespect is considered a punishable offense, irrespective of the offender’s nationality.
• Before entering the inner sanctum of the monastery, it is essential to remove one’s shoes as a sign of reverence.
• To maintain the sanctity of the place of worship, it is advised to dress modestly, ensuring that shoulders, midriffs, arms, and legs are fully covered within the complex.
• Showing respect to the monks by smiling and treating them with dignity is a fundamental requirement.
• For those interested in capturing stunning photographs, visiting the monastery during the late afternoon is highly recommended.
• Carrying a bottle of mineral water can be beneficial to stay hydrated while exploring the premises.

Reviews of Tourists

Let’s take a look at what other travelers are saying about Wat Yai Chai Mongkhon on TripAdvisor:

Koe Wei Loon

Landmark of Ayutthaya
Apr 2023
A temple which has long history and great architecture. The bell-shaped chedi is really huge. Do spend some time to climb up the steps. A great place to visit.

Kwanruthai A

Great location.
May 2023 • Couples
I have been to this temple many times. Because of the beauty of this place. This time i suggest this place to my boyfriend who come from the U.S.A. saw the beauty of the art st this temple.