Day 1

From (Source Station) Mode Time To Destination
Sukhumvit Airport 10:30 a.m. -11:30 a.m. Narai Hotel Take the Airport Rail Link to Phaya Thai. Then you can transfer to the Sukhumvit line, then in Siam for the Silom line to Chong Nonsi. Refer to BTS App.
At the Airport Rail Link line, buy a token from the vending machines. It doesn't go into a slot, it is just like a regular commuter card. At Phaya Thai, buy a Rabbit Card. Since you'll be in Silom you'll use the BTS. Put 300 Baht or So*
GM: from Chong Nonsi, Head northwest, then walk to the right. Landmark: Dean and Deluca Side
Narai Hotel Afternoon Uma Devi Temple or Sri Maha Mariamman Temple walk from hotel, 220m, 3 mins, exact target location is: 2 Pan Rd, Khwaeng Silom, Khet Bang Rak, Krung Thep Maha Nakhon 6AM–12PM
Narai Hotel Khaosan Road Take the BTS to Saphan Taksin station, where you can transfer onto the express boat at Sathorn pier. Then ride the express boat all the way north to Phra Arthit pier, which takes about 35 minutes and costs 13 to 18 baht. Make sure to get either the orange flag line or the blue flag tourist boat, as the yellow flag line skips Phra Arthit pier completely. Use the map by the Express Boat dock to confirm operating times, and which flag-colored boats make which stops.  From Phra Arthit, 5 min walk to Khao San road. Use googlemaps.
Wat Saket Temple Take a cab or tuk tuk ENTRANCE FEE: 20BHT
Loha Prasat Temple  Take a cab or tuk tuk/ FREE ENTRANCE
Lunchtime Nang Loeng Market Take a cab or tuk tuk
Ananta Samakhom Throne Hall  Take a cab or tuk tuk/ FREE WITH TIX
Vimanmek Mansion  Take a cab or tuk tuk/ FREE WITH TIX
Narai Hotel Dinner Chong Nonsi Silom Soi 20 is easy to find. From Chong Nonsi BTS station, take exit 3 and walk straight at the end of the stairs, then hang a left onto Silom Road, cross the street when you can, and Soi 20 (aka Soi Pandit) will be on the right after a half kilometre. Noodle and kap khao vendors get rolling in the morning while seafood grills open at midday and keep those irresistible aromas wafting well into the night, when Soi 20 is especially hopping.

Day 2

From (Source Station) To Time To Destination
Narai Hotel The Grand Palace/ Wat Phra Borom Maha Ratcha Wang Take BTS to Saphan Taksin Station/ Tha Sathorn pier under the bridge or the Oriental Pier (the public one) and catch the Chao Phrya Express boat coming from your left. Get off at Tha Chang pier and walk straight out through the market. The Grand Palace entrance is a 2-3 minute walk right ahead. Use Google Map offline. 40php per head chong nonsi to siam (25BT)
The Grand Palace Walk through the market around the pier and out onto the plaza flanked by old shop-houses. The long white wall of the Grand Palace is across the street on your right. The entrance is the second gate in the wall. Entrance Fee: 500BHT Open from 8am-3pm 800php Entrance Fee per head or (500BT)
The Grand Palace Wat Pho (Reclining Buddha) The easiest way to get to Wat Po is by boat. Take the Chao Phraya River Express from the Sathorn Pier to the Tha Thien pier (N8), then walk through the market and up the short street. Wat Po is directly across the intersection, on your right. On the left is the rear wall of the Grand Palace. Entrance Fee: 100BHT 160Php Entrance Fee per head or (100BT)
Wat Arun (Temple of the Dawn From Tha Tien (N8) pier, take the river crossing ferry at 3 THB per person. There is a special ticket counter for the river crossing boat at pier N8. This river crossing ferry service will drop you in front of Wat Arun. For coming back to Tha Tien pier, one needs to buy another 3 THB ticket from the other side. 80Php Entrance Fee or (50BT)
Wat Kalayanamit  It may be reached directly via a cross-river ferry from Ratchinee pier. Or you could hop off the Chao Phraya Express boat at Memorial Bridge (aka Saphan Phut) pier, walk across Bangkok’s oldest cross-river bridge and head north from there until you reach the backdoor of the temple. 80Php Entrance Fee or (50BT)
Wat Kalayanamit  The best way to get to Wat Kalayanamit is by boat. Take the Chaophraya River Express to either Ratchinee or Memorial Bridge (Saphan Phut) piers. From Ratchinee pier, you can get a cross-river ferry to the pier right next to the temple. 
The Royal Elephant Museum  The museum is open to the public every day from 9:30am to 4pm and is free with a ticket to the Grand Palace (or 100 THB when purchased separately).
Wat Kalayanamit  Chao Mae Tuptim Penis Shrine Distance is 3.2 km, 10 min cab Cab: 150 Php (2persons)
Chao Mae Tuptim Penis Shrine Narai Hotel
Total (Estimate) 3000Php

Day 3

From (Source Station) Mode To Destination Notes
Narai Hotel Bus, Minivan Wat Ayutthaya  Take the BTS Skytrain to Mochit BTS. The bus and BTS station are around a 20 minute walk apart so either get a taxi (less than 50 bhat) or a local bus: buses 26, 77, 96, 104, 136, 145, 509 go to the bus terminal. Take the minivan. It makes stops along the route to Ayutthaya so make sure you continue to the end of the route at Naresuan Alley, the main street which runs parallel to the Chao Phrom market and is close to Wat Mahathat. ENTRANCE FEE: 50 BAHT
Wat Ayutthaya  Version of Mark Weins: Take the BTS to Victory Monument station and exit towards Century Shopping Mall (located right below the BTS station). At the ground level of Century mall, you’ll find van stands where you can purchase a ticket to Ayutthaya. Vans leave frequently and you can just show up, purchase your ticket, and be on your way.
Wat Ayutthaya  Other version: Take BTS Skytrain to the Victory Monument station and go right on the elevated walkway keep at it until you cross a large road, the buses are parked at the side of Fashion Mall
Bus, Minivan Wat Ayutthaya  After arriving in Ayutthaya take the first stop to Wat Yai Chai Mang Khon with its towering stupas and reclining Buddha. Go to Wat Phra Mahathat to see the Buddha head in the tree roots and continue on to Wat Phra Si Sanphet and the Phra Mongkhon Bophit chapel and finishe up at Wat Chaiwattanarm.
Take Note: In observance of Buddhist religion, visitors taking their photo have to keep their head lower than the Buddha figure, as a form of respect.
Wat Mahathat Breakdown of Fees: Wat Yai Chai Mongkon- ENTRANCE FEE: 20 BHT
Wat Phanan Choeng- ENTRANCE FEE: 20 BHT
Head of Buddha at Wat Mahathat - ENTRANCE FEE: 50 BHT
Wat Chaiwatthanaram Narai Hotel Go back to the minivan. Drop off at Mo Chit Station in BTS, then take up to Chong Nonsi. Walk or cab to get to the hotel.
Narai Hotel Soi Silom Foodcourt Walk use Google Maps/ $1 menu from Mark Weins

Day 4

From (Source Station) Mode To Destination Notes
Narai Hotel century mall Walk to BTS Chong Nonsi Station and go to Siam, from Siam, transfer to Phayathai Station 47 Baht Per person

Day 5

From (Source Station) Mode To Destination Notes
Narai Hotel Ferry Chatuchak Market Take the BTS to Saphan Taksin station, where you can transfer onto the express boat at Sathorn pier. At Sathorn/Central Pier, there is a BTS station known as taksin/central pier. This green line bts (ticket 40 thb) directly goes to Mo Chit BTS that is the last station of the green line and very closed to the Chatuchak market. Everyone leaving the train at mo chit generally walks to chatuchak market from exit no.1. Exiting from the right side, you can able to see the huge crowd gathered around the market from the bts station itself.
Chatuchak Market BTS and Cab Chinatown You can take MRT Subway from Chatuchak Weekend Market (either Chatuchak Park MRT station or Kamphaeng Phet MRT station) to Hua Lamphong MRT station. Then, you have to walk to Yaowarat Road. The station is not close to Chinatown, but it is possible to walk.