Buddy Oriental Riverside, Nonthaburi 

It's only a seven-minute boat ride away from the slow-life island of Koh Kret, known for its Mon community. This Apr 1 they're also launching a brand-new riverside restaurant called Fahprapha, with a special sunset promotion of B499 for free-flow drinks from 6-9pm daily. 

Bangkok Tree House, Samut Prakarn 

How about a last minute eco staycation? Only a short ride from BTS Bang Na, this lush Samutprakan hideout runs a weekday promotion for its Tree Top Nest room at B2,999/night including breakfast for two, available through Apr 7. It's also only a 10-minute bike ride away from Bang Nam Pheung Floating Market. 

Sampran Riverside, Nakhon Pathom 

 
About an hour away from Bangkok, you can indulge in a cultural stay by Ta Chin River at this 70-acre oasis, enjoy art and craft workshops at its Thai Village, take cooking classes, shop at the weekend farmers' market, tour the on-site Sookjai Organic Farm, or just enjoy Thai cuisine by the river. Their Organic Living Weekend package is only B1,800/person, inclusive of workshop activities. 

Parndhevi Riverside Resort and Spa, Nakhon Pathom 

 
Parndhevi is home to the mega popular Riva Floating Cafe where you can just dip your feet into the Nakhon Chai Si River (if you can get the good tables). After all these years it's still the go-to place in Nakhon Pathom. The resort has recently launched a new, tres-chic riverside eatery called Nava Tea Terrace, serving afternoon tea from 10am-8pm every Wed-Mon. B3,000 for a one-night stay plus breakfast and a 1.5-hour aromatherapy massage for two. 

Asita Eco Resort, Samut Songkhram

 
The Green Award winner of the Thailand Boutique award 2016/17 is one hour away from Bangkok and 10 minutes from Amphawa and Damnoen Saduak Floating Market. Asita's 22 villas are all eco-friendly, and you can even watch fireflies at night from your private porch. The Songkran holiday package is B3,500, inclusive of breakfast and a boat trip for two guests. 

Weara Waree 2499, Samut Songkhram 

Amphawa's new riverside hotel offers an idyllic rural retreat
 
An idyllic rural retreat sitting on the banks of Mae Klong River,  this charming hotel is actually a wooden house which dates back to 1956. It's far away near Don Hoi Lot, and you can still explore the rivers or even do an overnight fishing trip for a unique experience. Rooms are B2,000-2,500/night.

Sala Ayutthaya, Ayutthaya

 
Ayutthaya is probably not the first place that comes to mind when you think of summer. But these sala Ayutthaya rooms are just to die for. Prices start from B4,500 for a riverview Deluxe room, inclusive of breakfast by the Chao Phraya River at the eatery and bar, which arguably has some of the best views of Phutthaisawan Temple. Free bicycle rentals if you want to tour the ancient capital at your own pace. 

The Legend Maeklong, Samut Songkram

 
Constructed during the reign of King Rama 6, this boutique vintage hotel combines Thai architecture with a colonial touch. It also has a super chill riverside restaurant that comes with unobstructed view of Mae Klong River. 

Baan Pong Tara, Ratchaburi 

 
Suan Pheung isn't all about faux-European resorts and Thai music festivals. This low-key lakeside resort is only 800 meters away from The Scenery, while still being able to maintain the tranquilty and greenery all year-round. Prices start at B2,200 for the Baan Rim Naam lodge.

Villamoreeda, Ratchaburi

 
 
Situated next to Lum Pa Chee River, Villamoreeda offers a super serene getaway across a private one-rai area of pure nature. These cute modern rooms start from B3,200 during Green Season, but check with the resort directly for special deals. 

Floathouse River Kwai, Kanchanaburi 

 
Sure, it's a little bit of a trek trying to get to Float House as you can only reach it via the local long-tailed boat from the Phutakien Pier, but trust that these Thai-folk style floating villas, all equipped with aircon and wifi, will be worth it. There's currently 25% off on all River Kwai overnight tours, applicable for bookings from now through Oct 31. 

X2 River Kwai, Kanchanaburi

All 22 rooms face the spectacular views of Kwai Noi River. Said to be the most beautiful resort in Kanchanaburi, X2 River Kwai's new XFloat Cabins come with an upper deck that will allow you to make the most out of the view from sunrise till sunset. There's also a really tempting deal B8,500/night on weekdays that includes three meals, a one-hour massage for two guests plus late check out at 4pm. 

Kwai Tara Riverside Villa, Kanchanaburi

 
The latest floating villa resort to open right on River Kwai offers a free boat ride along the Kwai Noi river daily. Their 10 modern villas are 80 sq meters, and all come with a hammock right at the front porch by the river. Special B1,000 discount applies right now during the soft opening, which will set you back at B4,000/night for a Canal Access Room, and B4,500/night for a Floating Villa, inclusive of breakfast.