Spring Hiking Season Arrives! Explore Tokyo Tama's "Mountains" and "Hills" with a Stamp Rally

Yamakei Publishers Inc. (Headquarters: Chiyoda-ku, Tokyo; President: Hirofumi Ninomiya), which operates media businesses in the mountaineering and nature fields within the Impress Group, has decided to extend the "Tokyo x YAMASTA Tokyo Tama Hike Stamp Rally," which has been held since October 2025, from April 1 (Wednesday) to September 30 (Wednesday), 2026, due to its popularity. The popular prizes awarded for collecting stamps will also be mass-produced, and new registrations will begin for the new season. *"Mountain Stamp Rally App®" is a registered trademark of Yamakei Publishers Inc. The Tama region, located in the western part of Tokyo, is an area rich in nature, with primeval beech forests and clear streams flowing through valleys, despite being right next to a major city. It is popular as an accessible hiking spot near the Kanto region, offering easy access from the city center and casual nature experiences. The "Tokyo Tama Hike Stamp Rally" explores the nature of the Tama area through two courses: the "Tama 10 Peaks Panorama Course," which visits 10 low mountains with beautiful panoramic views from their summits, and the "Nishi Tama Hills Tour Course," which allows participants to enjoy Tama's nature more casually. Both courses offer various expressions depending on the season, such as fresh greenery, autumn leaves, and spring flowers. Collecting stamps earns you a commemorative can badge, and you can also apply for a special pin through a lottery. With the extension of the event period, the production of novelty items has also been increased. Collect stamps and be sure to apply! [Event Period] April 1 (Wednesday) - September 30 (Wednesday), 2026 [Campaign Details] https://yamasta.yamakei.co.jp/info/tokyotama.html ◆Course Details ・Tama 10 Peaks Panorama Course This course visits 10 mountains with beautiful panoramic views from their summits. You can enjoy various views depending on the mountain you climb, including the surrounding Tama mountains, Mt. Fuji, and central Tokyo. 1. Iwatakeishiyama 2. Hinodeyama 3. Akabokko 4. Otakesan 5. Ajiroshiroyama 6. Tokurashiroyama 7. Asamamine 8. Mitousan 9. Jinbasan 10. Takaozan ・Nishi Tama Hills Tour Course This course offers casual hiking through gently undulating deciduous forests. In addition to encountering historical sites and landscapes that evoke history and culture, you can also enjoy a town walk. In spring, Hamura's cherry blossoms and tulips, and Shiofune Kannon-ji Temple's azaleas come into full bloom one after another. 1. Asamagatake (Hamura Sokabana Hills) 2. Osumiyama (Hamura Sokabana Hills) 3. Shiofune Kannon-ji Temple (Kasumi Hills) 4. Nanakuniyama (Kasumi Hills) 5. Ajiro Bentenyama (Akigawa Hills) 6. Kongo Falls (Akigawa Hills) ◆Achieve the Stamp Rally and Get Prizes Collecting stamps earns you a commemorative can badge, and you can also apply for a special pin through a lottery. ◆What is YAMASTA? "YAMASTA" is a mountain and nature stamp rally app that issues a digitally designed stamp for each location when you press the check-in button within the app at designated spots such as mountain peaks and tourist attractions. Visiting multiple check-in locations set as a stamp rally event provides an incentive to go out, and collecting all stamps gives a sense of accomplishment. Currently, 66 stamp rally events are being held nationwide, with a cumulative total of over 1.12 million visitors. YAMASTA's check-in function for acquiring stamps uses a smartphone's location information system (GPS), so it can be used even in an offline mobile signal (call) environment. Also, since the app and server manage the stamp rally events, the implementation period can be freely set. Participants can join the event at their convenience anytime during the period, and there is no need to queue at a counter to get stamps, making it easy for anyone to collect stamps. From March 2025, in addition to conventional functions, a paid subscription service "YAHHO! Members" has been launched, offering enhanced features and support to make mountaineering and hiking with YAMASTA even more convenient. [Yamakei Publishers Inc.] https://www.yamakei.co.jp/ Founded in 1930. In addition to publishing businesses related to mountaineering, natural science, outdoor, lifestyle, and health, centered on the monthly magazine "Yama to Keikoku," the company also develops online media and services. Furthermore, it is engaged in solution businesses aimed at regional revitalization in collaboration with companies and local governments, with themes of mountaineering and outdoor activities. [Impress Group] https://www.impressholdings.com/ Impress Holdings Inc. (Headquarters: Chiyoda-ku, Tokyo; Representative Director: Yuki Tsukamoto) is a media group with Impress Holdings Inc. as its holding company. It develops highly specialized media & services and solution businesses with "IT," "Music," "Design," "Mountaineering/Nature," "Aviation/Railway," "Mobile Services," and "Academia/Science & Engineering" as its main themes. Furthermore, it also handles the development and operation of content business platforms. [Contact for this matter] Yamakei Publishers Inc. Contact: Noji, Sugiura Jimbocho Mitsui Building, 1-105 Kanda Jimbocho, Chiyoda-ku, Tokyo 101-0051 TEL 03-6744-1900 E-mail: info@yamakei.co.jp https://www.yamakei.co.jp/