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Alter Dive

Dive operator
Kerama & Zamami, JapanScuba diving · Snorkeling
View the programs
Emergency contactsKerama & Zamami · region-wide · 7 contactsShowHide
  • Ambulance and medical emergencyAmbulance and emergency medical requests — based on official public data
    119
    Original (Korean)

    소방·구급 긴급 신고(국번 없음) · 일본 소방청 공식 안내

    Check the source ↗
  • International maritime distress — VHF channel 16
    Original (Korean)

    선박·다이빙 보트의 조난·긴급·안전 통신(MAYDAY, DSC 호출 후 음성)

    VHF channel 16
    Original (Korean)

    해상 VHF 장비 필요 · 휴대전화용 지역 해양구조 번호는 확인 필요

    Check the source ↗
  • Nearest emergency medical facility
    Original (Korean)

    다이빙 사고 환자 안정화·평가 기관 · 수용 병원과 고압산소시설은 현지 응급서비스/DAN을 통해 확인

    Needs checking
    Original (Korean)

    병원명·직통번호·응급실·고압산소치료 가능 여부 확인 필요

    Check the source ↗
  • DAN international diving emergency hotline
    Original (Korean)

    잠수 응급 의료 자문·의료기관 안내·진료/후송 조정 · 생명 위급 시 현지 응급전화/병원 우선

    +1 919 684 9111
    Original (Korean)

    24시간 365일 · 전 세계 이용 · 국제 수신자부담 통화 가능 · 비용 지원은 가입/보장 조건에 따름

    Check the source ↗
  • DAN Japan emergency hotline
    Original (Korean)

    지역 DAN 다이빙 응급 의료 자문 · 생명 위급 시 현지 응급전화/병원 우선

    +81 3 3812 4999
    Original (Korean)

    24시간 365일 · 일본 내 다이빙 응급상황

    Check the source ↗
  • Japan Coast Guard 118
    Original (Korean)

    일본 해상 사고·조난·인명구조 긴급 신고

    118
    Original (Korean)

    24시간 해양 사고 신고(국번 없음)

    Check the source ↗
  • Police emergencyReport crime, violence, threats and other emergencies to local police
    110

    Police emergency line · Hours not stated in the official source

    Check the source ↗

In a life-threatening emergency, call the local emergency number first. Check the numbers, and whether a facility can take patients, against the official source.

The sea today

Kerama & Zamami

Water temperature · Waves · Rain chance · 7-day forecast

Programs here

All programs
No program photoGuided boat scuba diving
Guided boat scuba diving

2 Boat Fun Dives

자마미 주변의 당일 가능한 두 포인트를 인증 다이버가 현지 가이드와 탐색합니다.

전체 장비 ¥5,500/일 별도

¥13,750Details
No program photoGuided boat scuba diving
Guided boat scuba diving

3 Boat Fun Dives

지형·모래·산호 등 성격이 다른 세 포인트를 조합하는 종일 인증 다이버용 상품입니다.

전체 장비 ¥5,500/일 별도

¥18,700Details

About this operator

Water activity operator in Kerama & Zamami, Japan offering scuba diving, snorkeling, island hopping & boat trips, and marine life encounters. Published prices for 3 programs. Featured program: 2 Boat Fun Dives (¥13,750). Marine life programs: coral and humpback whale (scuba diving, boat-based watching). Season: Year-round · Dec–Mar. Checked on Aug 28, 2026 · Source: Official source.

Original (Korean)

자마미에서 지형·모래·산호를 조합한 1일 최대 3회 보트 펀다이빙과 초보·브랜크 다이버를 위한 별도 지원, 겨울 고래 선상 관찰을 운영합니다.

Scuba divingSnorkeling
All operator details →

Visiting

Kerama & Zamami, Japan
Location and hours →All regions and operators in Japan →

Public programs and prices

Compiled from public sources. They may differ from the programs you can book on Maptlantis, so check prices and conditions in the operator’s official information.

No program photoGuided boat scuba diving
Guided boat scuba diving

2 Boat Fun Dives

자마미 주변의 당일 가능한 두 포인트를 인증 다이버가 현지 가이드와 탐색합니다.

전체 장비 ¥5,500/일 별도

¥13,750Details
No program photoGuided boat scuba diving
Guided boat scuba diving

3 Boat Fun Dives

지형·모래·산호 등 성격이 다른 세 포인트를 조합하는 종일 인증 다이버용 상품입니다.

전체 장비 ¥5,500/일 별도

¥18,700Details
No program photoDive program
Dive program

Confidence-Support Dive Add-On

초보·브랜크 다이버가 별도 보트·가이드 틀에서 웨이트, 하강과 중성부력 등 필요한 기술을 복습합니다.

+¥3,300 / sessionDetails
No program photoBoat-based humpback whale watching
Boat-based humpback whale watching

Winter Humpback Whale Watching

자마미 겨울 회유 수역에서 혹등고래를 선박 위에서 탐색하고 자연 행동을 관찰합니다.

Price on requestDetails

Operator details

About Alter Dive

Water activity operator in Kerama & Zamami, Japan offering scuba diving, snorkeling, island hopping & boat trips, and marine life encounters. Published prices for 3 programs. Featured program: 2 Boat Fun Dives (¥13,750). Marine life programs: coral and humpback whale (scuba diving, boat-based watching). Season: Year-round · Dec–Mar. Checked on Aug 28, 2026 · Source: Official source.

Original (Korean)

자마미에서 지형·모래·산호를 조합한 1일 최대 3회 보트 펀다이빙과 초보·브랜크 다이버를 위한 별도 지원, 겨울 고래 선상 관찰을 운영합니다.

Area
Kerama & Zamami, Japan
Main activity
Marine life encounters
Type
Water activity operator

Services and visitor information

Scuba divingSnorkelingIsland hopping & boat tripsMarine life encounters
Registered service names

Boat dive · Small groups

Original (Korean)

자마미 케라마 리프레시

Frequently asked questions

What can you do at Alter Dive?

Listed services: scuba diving, snorkeling, island hopping & boat trips, marine life encounters, boat dive, small groups, guided boat scuba diving, dive program, and boat-based humpback whale watching. Confirm current programs and requirements through official channels before booking.

What is the featured program at Alter Dive, and how much does it cost?

The featured program is 2 Boat Fun Dives, with a published price of ¥13,750. Check the original listing for taxes, gear, transfers and seasonal surcharges.

When is the season at Alter Dive?

The listed season is Year-round · Dec–Mar. Schedules can change with sea conditions, weather, wildlife movements and local rules.

How can you see coral with Alter Dive?

3 Boat Fun Dives is listed as scuba diving. Wildlife encounters are not guaranteed; follow the day's permits, rules and the operator's guidance.

Location and directions

View on the mapKerama & Zamami, Japan

Opening hours and visiting

Season
Year-round · Dec–Mar
View the programs

Sources and checks

Compiled from information published by the operator, public bodies and maps. Prices, schedules and requirements can change.

Check basis
Official source
Checked on
Aug 28, 2026

Stories from visitors

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Photo: JimJones1971 / Wikimedia Commons · CC BY-SA 3.0
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