Hong Kong to Inchon (Seoul)

Hong Kong's port is a vibrant gateway to a unique blend of Eastern and Western cultures, characterized by its stunning skyline and bustling atmosphere. Must-do experiences include savoring local dim sum and exploring the lively markets. The best season to visit is during the autumn months, when the weather is mild and ideal for outdoor adventures.

Hualien is the gateway to Taroko Gorge in eastern Taiwan — a marble canyon of staggering beauty carved through the Central Mountain Range — and to the 800-meter Qingshui Cliffs plunging into the Pacific. Must-do experiences include walking the Swallow Grotto Trail through the gorge, sampling indigenous and Taiwanese street food at Dongdamen Night Market, and witnessing the dramatic Qingshui coastal cliffs. October through April offers the driest conditions, avoiding the summer typhoon season.

Keelung, a historic port city in northern Taiwan, is known for its vibrant atmosphere and culinary treasures, including the famous Oyster Omelette and Braised Pork Rice. A must-do experience is exploring the bustling Keelung Night Market and venturing to nearby attractions like Sun Moon Lake and Taroko Gorge. The best season to visit is during the fall, when the weather is mild and pleasant for outdoor exploration.

Ishigaki is Japan's subtropical gateway to the Yaeyama Islands, where the world's largest blue coral colony, Kabira Bay's emerald waters, and Ryukyuan cultural traditions create an experience closer to Taiwan than Tokyo. Visit March through October via Holland America Line or Oceania Cruises for world-class reef snorkeling, traditional sanshin music, and the tropical Japan that challenges every assumption about the Land of the Rising Sun.

Zamami is a tiny island in Okinawa's Kerama National Park, surrounded by waters of legendary "Kerama Blue" clarity exceeding 50 meters, with pristine coral reefs, sea turtles, and humpback whales visiting from January through March. Must-do experiences include snorkeling Furuzamami Beach's crystal-clear reefs, whale watching with local fishermen, and cycling between traditional Okinawan villages. April through November offers ideal water temperatures for snorkeling, while winter brings spectacular humpback whale encounters.

Amami-Oshima is a UNESCO World Heritage island between Kyushu and Okinawa, home to ancient subtropical forests, endemic wildlife including the rare Amami rabbit, and pristine coral beaches like Tomori. Visitors should explore the Kinsakubaru Primeval Forest, witness the 1,300-year-old Oshima tsumugi silk-dyeing tradition, and kayak through the Sumiyo mangroves. Spring (March-May) and autumn (October-November) offer the most comfortable conditions.

Kagoshima, the "Naples of the East," is a dramatic port city on Japan's southern coast defined by the active Sakurajima volcano and a rich samurai heritage dating to the powerful Shimazu clan. Visitors should not miss the fifteen-minute ferry crossing to Sakurajima's lava fields and a tasting of legendary Kurobuta black pork paired with local sweet-potato shōchū. Spring (March–May) offers mild temperatures and cherry blossoms, while autumn (October–November) brings clear skies ideal for volcano views.

The Goto Islands are a remote Japanese archipelago off western Kyushu, renowned for their UNESCO-listed Hidden Christian churches built by communities that secretly maintained their faith through over two centuries of persecution. Must-do experiences include visiting the poignant Kashiragashima Church, tasting Goto udon noodles in flying fish broth, and exploring the dramatic Osezaki basalt sea cliffs. April through November provides the best weather, with the February-March camellia flowering season adding spectacular natural beauty to these historically extraordinary islands.

Sasebo is a port city in Nagasaki Prefecture, Japan, renowned for the stunning Kujukushima archipelago of 208 pine-clad islands and a unique culinary scene shaped by American naval influence. Must-dos include viewing sunset over the islands from Tenkaiho Observatory, sampling the famous Sasebo Burgers, and cruising through the archipelago by boat. Visit March through May for cherry blossoms or October through November for autumn colors framing the island panoramas.

Incheon is South Korea's gateway city and the birthplace of jajangmyeon black bean noodles, featuring Korea's only Chinatown, Korean War memorials, and ferry access to 168 islands in the Yellow Sea. Must-dos include the Yeonan Pier fish market, Ganghwa Island's UNESCO dolmens, and a DMZ excursion. Spring (April–June) and autumn (September–November) offer the best weather, with cherry blossoms and foliage respectively.