Science14 min read
The Light That Is Beginning to Fade
Where have they gone, those that our parents used to call "the fingernails of the dead"? What should we do now, when the night is no longer as dazzling as it once was?
Read moreWriting
Articles
Activity reports, historical research, and technical notes written by DIAZ members.
18 articles
- Obituary4 min read
Notes from a Life of Loyalty to the End: Agus Purnomo
During his time developing within Diaz, the idea emerged to cultivate two kinds of literacy among Diaz members: textual literacy through access to books, and experiential literacy through adventure activities and field visits, using photography as a medium. In this way, every member gains a more complete understanding of the surrounding environment before taking a photograph.
Read more - Science14 min read
Good Intentions Are Not Always Wise: The Problem of Street Feeding
This article discusses street feeding, the practice of feeding stray animals such as stray cats and dogs, from the perspective of empathy as well as its long-term impact on populations, ecosystems, and the spread of disease. The author emphasizes that good intentions must be accompanied by knowledge and responsibility.
Read more - Reflection3 min read
The Urgency of the DIKLATSAR OPA DIAZ?
DIAZ member Irwan said: "One of the functions of training is to refresh one another's memory of the material, while also digging deeper and generating ideas to improve and process neglected literacy memories. Training also serves as a tool for building humane communication among members; it is, so to speak, a small-scale but quality reunion."
Read more - Activities4 min read
Survival Kids Part 2: Tim Elang Muda Adventure at Coban Putri
The Elang Muda Adventure Team held Survival Kids Part 2 at Coban Putri, Batu, on 18 October 2026, attended by 12 children aged 5-10. This educational activity trained courage, emotional control, teamwork, and basic survival skills through measured challenges.
Read more - Obituary3 min read
DODI CAHYO SURYONO: A Cave Lover Who Gave His Life to Caving Enthusiasts in Malang. A Loyalty to the End.
An article remembering Dodi Cahyo Suryono, a pioneering caver of Malang who passed away on 24 August 2021, and his contributions in mentoring generations of DIAZ cave explorers through his example and his selfless lending of equipment. He received honorary member status from DIAZ.
Read more - Obituary3 min read
Returning to the True Homeland with Loyalty to the End
This article remembers Urip Lakasana DKP, a DIAZ member since 1990 who served as Chairman of DIAZ in 1993 and passed away after a two-year battle with illness. He is remembered for his dedication, loyalty, and his service in bringing JASMAS assistance to the organization.
Read more - Reflection5 min read
Proving the Role of Trees in Stabilizing Emotions and Stress
The author recounts the "Mlaku berkelanjutan" (sustainable walking) journey to Sabana Barotan Pujon and the experience of hugging a large tree about 55 years old as a personal experiment to prove the benefits of forest bathing for mood and stress.
Read more - Announcements2 min read
Harmony of the Golden Trail: Looking Toward Half a Century of OPA DIAZ Malang
This article discusses the 50th Golden Anniversary of OPA DIAZ Malang (1975–2025), along with the meaning of the eagle logo containing 11 activity silhouettes and the theme "Harmoni Jejak Emas" (Harmony of the Golden Trail). The logo and its earth-tone color palette are designed as symbols of resilience, brotherhood, and respect for nature.
Read more - Announcements1 min read
Survival Kids Part 2
This article invites parents to enroll their children in the next round of the "Survival Kids" training, which focuses on developing cognitive skills, imagination, and resilience through fun play activities. Registration information is available through the organizer's Instagram account.
Read more - Activities6 min read
Not Only the Great Outdoors, Social Action Also Needs to Be Explored
OPA DIAZ, together with MAPALA ASPAL ITB Asia Malang and HIMPAS Vigneçvara STIE Malangkuçeçwara, held a Free Mosque Cleaning event in Sidorejo Village, Jabung District, Malang, on 4 October 2026. The event shows that the skills and spirit gained in the outdoors can be put into practice as service to the community.
Read more - Activities5 min read
Sunday Morning at Coban Putri: Learning to Live, Not Just Playing
Elang Muda Adventure held a mentoring program at Coban Putri, Batu, for children aged 7-10 to strengthen their mental resilience and inner character through games and learning in the open air over 4 hours. The activity received an enthusiastic response from the parents.
Read more - Literature2 min read
Mother, in the Remnants
The third work in the Ibu Bumi trilogy by Tientus Sudarto depicts the figure of Mother Earth completely worn away by destruction and drought, yet still moving her hands as a plea that her existence be remembered.
Read more - Literature2 min read
The Threshold of Mother's Silence
The second part of Tientus Sudarto's Mother Earth Trilogy depicts a crack that reaches the chest of Mother Earth, as she stops nursing as a sign that even nature's giving has an end. This work in charcoal and coffee stains serves as a silent answer to the earlier lament.
Read more - Literature2 min read
The Mother's Lament
The latest work by Sahabat DIAZ Tientus Sudarto, "Ratapan Ibu" (Mother's Lament), depicts a cracked Mother Earth as a critique of environmental destruction. The painting is made from charcoal from illegally logged wood in South Malang and coffee stains, so the medium itself becomes part of the issue it raises.
Read more - Science29 min read
The Real Alien Invasion
This article discusses the invasion of alien species that is quietly damaging Indonesia's natural ecosystems, not by spaceship, but through non-endemic flora and fauna that enter and thrive outside their native habitats. The author invites readers to understand what invasive species are, where they come from, and what steps can be taken.
Read more - Literature29 min read
The Tales of the Eagles: Rulers of the Ancient Skies
This article in the "Kisah Para Elang" series from the DIAZ blog explores eagle species in a storytelling style that remains grounded in science, opening with an introduction to prehistoric life and the flying reptile Pteranodon. The author also thanks the board members and fellow members of the organization who supported the writing.
Read more - History11 min read
From European Explorers to the Ancient Eagle
This article traces the origins of the name DIAZ, a nature-lover organization in Malang, through historical research that uncovered several different theories, one of which links the name to the Portuguese explorer Bartholomeus Diaz. The piece also discusses the background of European voyages in search of a sea route to the Indies after the fall of Constantinople.
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