Activities in Okinawa:
[1] Viator: Top 15 things to do in Okinawa: link
[2] Okinawa Churuami Aquarium I Travel Japan (Japan National Tourism Organization) link
[3] 10 things to do in Okinawa: Complete Guide link

Okinawa War Memorial and Museum:
[1] Okinawa War Memorial Museums | Japan Experience link
[2] War Memorials – Okinawa Travel – Japan Guide link
[3] Okinawa Peace Memorial Museum | Things to Do in Naha – All Japan Tours link
[4] Four Perfect Days in Naha, Okinawa | Blog | Travel Japan (Japan National Tourism Organization) link
[5] Okinawa Peace Memorial Museum | 上り口説 Nubui Kuduchi – WordPress.com link
[6] Historic spots – Okinawa Island Guide link

Shikinaen Garden:
[1] Shikinaen Garden – Naha Travel link
[2] Shikinaen Royal Garden 識名園 – Okinawa, Japan link
[3] Shikina-en Garden Naha. Japan Experience link
[4] Shikinaen Royal Garden Visit Okinawa Japan link
[5] ShikinaenGarden (Naha) All You Need to Know BEFORE You Go link

Okinawa: Shikinaen Royal Garden Reference page:
[1] Shikinaen Royal Garden I Visit Okinawa Japan link
[2] Shikinaen Garden – Naha Travel link
[3] Okinawa: Japan’s a Tropical Paradise with a complex history link
[4] Skikina-en Garden Naha: Japan Experience link
[5] Naha Okinawa Destinations I Travel Japan (Japan National Tourism Organization) link

Shuri Castle, Okinawa Reference Page:
[1] Japan-Guide – Shuri Castle (Shurijo) – Naha Travel link
[2] Japan Travel – Shuri Castle 首里城 – Okinawa link
[3] Wikipedia – Shuri Castle link
[4] Atlas Obscura – Shuri Castle – Naha, Japan link
[5] The Local Travel Guide – Shuri Castle Okinawa, Japan link
[6] Viator – Shuri Castle (Shurijo) – What To Know BEFORE You Go link

Okinawa: Okinawa War Museum and Shuri Castle Sources
[1] Hacksaw Ridge and Shuri Castle WWII sites link
[2] Shuri Castle and Controversial Heritage in Japan link
[3] Okinawa War Memorial Museums I Japan Experience link
[4] Okinawa Project link
[5 In the Shadow of Shuri Castle: The Battle of Okinawa in Memory link
[6] Visiting Okinawa’s Shuri Castle: Rising from the Ashes link

Nikko:
[1] Sam’s Japan Travel Journal – Exploring Nikko link
[2] 18 BEAUTIFUL THINGS TO SEE IN NIKKO [FULL JAPAN GUIDE] link
[3] A Complete Nikko Itinerary for Two Days in Nikko – Pages of Travel link
[4] Seeing it ALL in Nikko | Getting the Most Out of Your Visit | A Different Side of Japan link
[5] Best things to do in Nikko, Japan | You Could Travel link
[6] Nikko Travel Guide: A Quick Getaway from Tokyo – Girl Eat World link

Yuzawa:
[1] Gala Yuzawa Snow Resort and My First Ski Experience link
[2] Snowy Day Trip to Gala Yuzawa from Tokyo [For Non-Skiers] link
[3] How to Do a Ski Day Trip to Gala Yuzawa link
[4] Schauwecker’s Japan Travel Blog: Skiing in Naeba link
[5] Full ski ahead! GALA YUZAWA and other fun things to do in … link
[6] Just one hour out of Tokyo! The “Gala Yuzawa Snow Resort … link

Sakura Viewing in Japan:
[1] Saitama Cherry Blossoms link
[2] 10 Best Spots to View Cherry Blossoms in Saitama link
[3] 13 Best Places to See Cherry Blossoms in Saitama link
[4] The Kumagaya Sakura Tsutsumi link
[5] Searching for Sakura link

Tokyo Skytree and Tower
[1] Tokyo Tower Complete Guide: Price, Hours, Things to Do link
[2] Tokyo Skytree: Restaurant, Fee, Station & More link
[3]Touring Tokyo by Sightseeing Taxi Tokyo Sightseeing link
[4]An In-depth Look at the Tokyo Tower One Piece Theme Park link
[5] Tokyo Skytree launches ‘Tree of Hope’  link

Team Labs
[1] Team Labs Planet Tokyo link
[2] Travel Caffeine, TeamLab Review: link
[3] Tokyo Travel Guide TEAMLAB PLANETS IN TOYOSU link
[4] GoTokyo, Team Labs Planet Tokyo link
[5] Tokyo Cheapo, Everything You Need to Know about teamLab Planets link

Shibuya
[1] Shibuya Crossing the World, JR Railpass link
[2] Shibuya Sky Panoramic link
[3] Shibuya Crossing – Traveler link
[4]Tokyo Tower Complete Guide: Price, Hours, Things to Do link
[5] Where to get the best views of the Shibuya Crossing link