From Biotouch Thailand to The Grand Palace and Wat Phra Keaw by Car:
20.9 km away from Biotouch Thailand
41 minutes drive
Take the Chalerm Mahanakorn Expressway in Khlong Toei District from Route 3 and Rama IV Road 14 minutes (5.0 km)
Continue at the Chalerm Mahanakorn Expressway Take the Si Rat Expressway to Phetchaburi Road. Take exit 2-09 from the Si Rat Expressway. 12 minutes (12.3 km)
Take Lan Luang Road and Ratchadamnoen Klang Road to Na Phra Lan Road in the Grand Palace. 11 minutes (3.7 km)
From Biotouch Thailand to The Grand Palace and Wat Phra Keaw by BTS:
Walk 8 minutes from Biootouch Thailand to BTS Ekamai Skytrain Station
Take the BTS to Saphan Taksin BTS Skytrain Station
Go out through Exit No. 2, and look for the dock for the Chao Phraya Express Boat.
The boat takes several routes; the "orange flag," "green flag" and "no flag" routes get you to the Grand Palace. Whichever route you take, get off at stop No. 9, which is the Tha Chang Pier.
From there, it's a 5- to 10-minute walk to the entrance of the Grand Palace.