What are the best day trips from Pattaya?

Ko Lan over Ko Samet when you have one day. Ko Samet sits 200 km southeast in Rayong Province, and the ferry schedule from Ban Phe makes a relaxed round trip impossible without sleeping over. Ko Lan is 7 km off Bali Hai Pier. The public ferry costs 30 baht each way and takes about 45 minutes; speedboats run 150 baht per person and cut the crossing to 15 minutes. Skip Tawaen Beach on the north side, where tour groups from Walking Street hotels fill the sand by 10am. Head to Samae Beach on the west shore, or rent a motorbike for 300 baht and ride south to Nual Beach. Nual's sand is coarser under your feet, but the water holds around 29°C and stays calm enough to float side by side without shouting over jet ski engines. Grilled squid from the beachfront vendors costs 80 to 120 baht a plate, smoky and slightly chewy with a squeeze of lime. Last ferry back departs at 6pm.

Nong Nooch Tropical Botanical Garden opened in 1980 and sits 18 km south on Sukhumvit Road. It works when one of you wants to walk gardens while the other reads on a bench. The French Garden section has enough symmetry and quiet stone paths that 90 minutes pass without retracing your steps. Admission is 500 baht. Combine it with Silverlake Vineyard, another 5 km south, where the vines are mostly decorative but the hillside restaurant serves a decent pad kra pao overlooking the reservoir. The air up there is noticeably cooler than the beach strip, and the late-morning light on the water is worth the 250 to 300 baht Grab fare from central Pattaya. Viharn Sien, a Chinese art museum near Nong Nooch, holds Shaolin-era bronzes and Qing-dynasty porcelain in dim, cool halls that smell faintly of sandalwood incense. This southern corridor fills about 5 hours from mid-morning to early afternoon.

Chanthaburi, 180 km east, is the best full-day trip for couples who disagree on what constitutes a good time. Hire a driver for 2,500 to 3,000 baht round trip; no public bus makes the timing work within a single day. The gem market on Si Chan Road runs Friday through Sunday, with Saturday morning the busiest stretch. Even a quick walk through takes 30 to 40 minutes, and watching dealers grade sapphires under loupe light at folding tables is oddly absorbing. The Cathedral of the Immaculate Conception, the largest Catholic church in Thailand, stands on the Chanthaburi River. The waterfront district along the old Vietnamese quarter smells like star anise and grilled pork. During mangosteen and durian season (May through July), the fruit stalls test whether you're the couple that bonds over durian or the couple that walks faster. Leave by 3pm to be back in Pattaya for dinner. Budget about 2.5 hours each way.

Sriracha, 30 km north, suits a low-pressure morning. This is the town that gave the hot sauce its name, though the original Sriraja Panich brand (sold at the local market, thick and slightly sweet) tastes nothing like the Huy Fong rooster bottle you know from home. Ko Loi, a small rocky island connected to the mainland by a short causeway, has a Chinese temple with views over the container port. Ko Loi is not romantic in any postcard sense. But it is the kind of morning where you eat rice porridge at a shophouse for 40 baht and talk without a plan. Bang Saen, another 10 km north, is a Thai university-town beach where foreign tourists are rare. Seafood restaurants along the beachfront road sell crab fried rice for 100 to 150 baht, and the water is shallow enough to wade out 50 meters and still stand. A songthaew from Pattaya's North Road bus stop to Sriracha costs about 50 baht.