Four layers: (1) Legal — NIB/TDUP/AHU registration verifiable on Indonesian government registries; (2) Police — founder Bripka Agung Sambuko's SPRIN-POLPAR and SPRIN-WAL-TRAVEL assignment documents plus Detik.com identity confirmation; (3) Press & Recognition — the Stefan Loose editorial feature, the Booking.com 2015 award, and the Detik 2021 article; (4) History & Artifacts — operational continuity from the 2015 guesthouse era through the 2023 PT formalization.
Don’t guess. Verify.
Check JVTO's legal identity, historical continuity and the founder's police assignment in the proof library.
Last reviewed 2026-08-06

NIB 1102230032918 preview image (WebP).

TDUP licence preview image (WebP).

HPWKI approval letter preview image (WebP).

SPRIN POLPAR (Tourist Police Assignment Letter)
Tourist Police assignment letter (SPRIN POLPAR) preview image.

SPRIN WAL-TRAVEL — traffic-escort order Sprin/70/II/HUK.6.6./2024, 12 February 2024
Police travel order (SPRIN WAL-TRAVEL), 12 Feb 2024 preview image.

HPWKI licence (KTA) of Anjas.

HPWKI licence (KTA) of Gufron.

HPWKI licence (KTA) of Kiki.

HPWKI licence (KTA) of Rendi.

HPWKI licence (KTA) of Taufik.

Crater access terms (screenshot, tiket.bbksdajatim.org): health requirements and doctor certificate. That portal is retired; the current authority is ayoketamannasional.kehutanan.go.id

Medical Practice Licence (SIP) — dr. Ahmad Irwandanu (Bondowoso)

Early third-party mention in a European travel guide.

BBKSDA (East Java Nature Conservation Agency) official training article: HPWKI members participate in Ijen guide safety training (SAR & emergency first aid).

Press mention screenshot (Detik.com) with founder name variant in Tourist Police context.

Press mention screenshot (Radar Jember) about Tourist Police formation for Ijen Geopark.

Stefan Loose Reiseführer Indonesien, Ost-JAVA | Ijen-Massiv, page 287.

Agung Sambuko (Mr. Sam), founder, in Tourist Police uniform - studio portrait.

Pre-ascent lineup at Baratha Hotel with Tourist Police support.

International group visiting JVTO Bondowoso operations office.

Evening welcome with guests at JVTO office.

Tourist Police briefing at Ijen Geopark Information Center with local miners present.

JVTO Bondowoso operations office.

Traffic Police escorted arrival at the hotel in Bondowoso group photo with the patrol car.

Arriving in Bondowoso with a Traffic Police escort group photo at the hotel after the journey.

Police support vehicle and group prior to departure.

Pre-ascent health screening at partner hotel.

Vitals taken and logged before night ascent.

Dr. Ahmad Irwandanu attaches a fingertip pulse oximeter to a guest's finger during the Ijen pre-ascent health screening at Baratha Hotel, Bondowoso.

Dr. Ahmad Irwandanu listens to a guest's chest with a stethoscope during the Ijen pre-ascent health screening at Baratha Hotel, Bondowoso.

Dr. Ahmad Irwandanu and two assistants prepare the pulse oximeter and blood-pressure cuff before a guest's Ijen pre-ascent screening at Baratha Hotel, Bondowoso.

Dr. Ahmad Irwandanu examines a second guest's chest with a stethoscope during the Ijen pre-ascent health screening at Baratha Hotel, Bondowoso.

Digitally recorded, signed clearance issuance.

Screening can be done at hotel or office.

Sample printout of health clearance (surat sehat) preview image.

Founder with Guests Holding Stefan Loose Guidebook (Homestad Era)

Booking.com Guest Review Award 2015 — Shipping Label (box)

Booking.com Guest Review Award 2015 — Plaque + Award Letter
History & continuity.
Since 2015The operation began as Ijen Bondowoso Homestay in 2015 at the same Bondowoso address, under the same founder. PT Java Volcano Rendezvous holds it today, with its Ministry of Law decree and TDUP registration of 2023.
- '15
2015 · Guesthouse
Mr. Sam opens the Ijen Bondowoso Homestay on Jl. Khairil Anwar No.102. Booking.com guests rate it 9.4/10.
- '18
2018 · Stefan Loose listing
Stefan Loose Reiseführer Indonesien (4th ed., p. 287) names "Agung" as operator — an independent German guidebook.
- '21
2021 · Independent press
Detik.com and Radar Jember name Bripka Agung Sambuko in Tourist Police duties at Ijen Geopark.
- '23
2023 · TDUP formalized
Tourism Business Permit formalized 2023-02-11. NIB 1102230032918 OSS-verifiable.
- '26
2026 · Today
17 private itineraries; 11 published crew, each holding an HPWKI licence (KTA); coordinated Ijen health screening with a licensed physician.

Active Tourist Police · POLPAR Bondowoso, POLRI
Police & safety proof.
Tourist Police Leadership
Founder Agung Sambuko is a serving Tourist Police (POLPAR) officer at Polres Bondowoso under Sprin/4954/XI/2020. The assignment letter is published in the proof library with its SHA-256 hash.
Ijen Health Screening
Mandatory for every Ijen guest under BBKSDA SE.35/K2/BIDTEK.1/KSA/1/2024: JVTO screens each guest before the ascent under SOP IHS-SOP-001, with licensed physician dr. Ahmad Irwandanu responsible, and records every result.
Guides with HPWKI cards
JVTO's Ijen guides hold KTA cards from HPWKI, the Ijen guide association registered under AHU-0001072.AH.01.07.TAHUN 2024. BBKSDA Jawa Timur ran a three-day search-and-rescue and emergency-medical (PPGD) training for 250 HPWKI guides at Paltuding on 20–22 May 2024.
Independent platform ratings.
Trustpilot · Google Maps · TripAdvisor63 verified reviews
View profile →200 reviews · verified location
View profile →21 reviews
View profile →284 independent reviews across three platforms · Google Maps is the schema-primary AggregateRating source
Verification FAQ.
Six questions to ask any operator, answered with evidence
- Who am I trusting?
- Java Volcano Tour Operator (JVTO) is run by PT Java Volcano Rendezvous from its operations office at Jl. Khairil Anwar No.102 A, Bondowoso, under NIB (Business Identification Number) and TDUP (Tourism Business Registration) 1102230032918 and Menkumham decree AHU-0010187.AH.01.01.TAHUN 2023.
- Where this is answeredOpen document
- Who will manage me on the ground?
- Groups of 1–3 guests travel with one English-speaking driver-guide; groups of 4–11 have a driver plus a separate escort guide, and licensed local site guides join where a site requires them. JVTO's Ijen guides carry member cards (KTA) from HPWKI (Himpunan Pelaku Wisata Khusus Ijen, the Ijen guide association) and attended the guide training run by BBKSDA (Balai Besar Konservasi Sumber Daya Alam, the East Java conservation agency) on 20–22 May 2024.
- Where this is answeredOpen document
- What happens across several days?
- One booking covers the whole sequence — pickup, private vehicle, hotels with breakfast, entrance tickets and permits, the Ijen screening where Ijen is on the route, and the final drop-off — and every inclusion is written on the E-Voucher, the binding document.
- Where this is answeredOpen document
- What happens when conditions change?
- When BBKSDA, the Bromo national park or BNPB closes a site, JVTO follows the closure, contacts guests before the day, offers the written Plan-B alternatives for that route, and applies the policy remedies when an element cannot run.
- Where this is answeredOpen document
- How are health and destination risks governed?
- Every guest on an Ijen itinerary is screened before the ascent, at the hotel or the JVTO office, under SOP IHS-SOP-001 with dr. Ahmad Irwandanu as responsible physician; the screening result decides whether the guest climbs, and website content is not a diagnosis.
- Where this is answeredOpen document
- What can I independently verify?
- Each licence, decree and assignment letter JVTO cites is published with its issuer, number and SHA-256 hash, and the company registration can be checked independently in the OSS and AHU registries.
- On this pageOpen document