ビザは必要ですか？
ESTA (Electronic System for Travel Authorization) required for Visa Waiver Program countries (UK, Australia, most EU, Japan, etc.) for stays up to 90 days. Canadians enter visa-free. Many nationalities require a B1/B2 tourist visa.
ESTA: apply at esta.cbp.dhs.gov at least 72 hours before travel. Tourist visa (B1/B2): apply at US embassy with DS-160 form, interview, and supporting documents.
ESTA: usually approved within minutes to 72 hours. B1/B2 visa: weeks to months depending on embassy wait times.
ESTA: $21 USD. B1/B2 visa: $185 USD application fee.
- ESTA is valid for 2 years and multiple entries.
- US visa interviews can have months-long wait times — apply very early.
- CBP officers at immigration can be intimidating — answer questions honestly and briefly.
- Passport must be valid for 6 months beyond your stay.
ビザ要件は国籍により異なり、頻繁に変更されます。旅行前にあなたの国の大使館または渡航先の公式入国管理当局にご確認ください。
Content on Ouoba is provided for general informational purposes only and does not constitute legal, immigration, visa, insurance, tax, medical, financial, safety, or other professional advice. Users should consult official authorities, qualified professionals, or service providers before making important travel, financial, legal, or health-related decisions.
治安はどの程度ですか？
Tourist areas in major cities are generally safe. Gun violence is a reality — mass shootings occur. Some urban neighborhoods have high crime. National parks and rural tourist areas are very safe. Healthcare is extremely expensive without insurance.
- Ticket scalpers outside major attractions.
- Fake homeless people with elaborate stories — common in NYC and LA.
- Rental car damage charges — photograph everything.
- Timeshare presentations disguised as free activities.
- Healthcare is excellent but EXTREMELY expensive. Travel insurance is absolutely essential — a hospital visit can cost thousands.
- Pharmacies (CVS, Walgreens) are everywhere.
- Tap water is safe in most areas.
- Routine vaccines only. No special requirements.
Tap water is safe in most cities. Some rural areas and Flint, Michigan have had issues — check locally.
Gun violence is a unique risk. Healthcare costs can be devastating without insurance. Driving distances are massive — the US is huge. Natural disasters vary by region (hurricanes, tornadoes, earthquakes, wildfires).
安全情報は公開されている渡航勧告に基づいています。最新のガイダンスについては、あなたの政府の渡航勧告サービスにご相談ください。
Content on Ouoba is provided for general informational purposes only and does not constitute legal, immigration, visa, insurance, tax, medical, financial, safety, or other professional advice. Users should consult official authorities, qualified professionals, or service providers before making important travel, financial, legal, or health-related decisions.
文化について何を知っておくべきですか？
- Road trip — the US is built for driving. Route 66, Pacific Coast Highway, Blue Ridge Parkway.
- Visit national parks — Yellowstone, Grand Canyon, Yosemite, Zion are world-class.
- Try regional food: BBQ in Texas, seafood in Maine, Tex-Mex, deep-dish pizza in Chicago.
- Don't forget to tip — 18-20% at restaurants is expected, not optional.
- Don't underestimate distances — LA to San Francisco is 6 hours driving.
- Don't jaywalk in some cities — you can get fined.
Tipping is MANDATORY in practice. 18-20% at restaurants. $1-2 per drink at bars. 15-20% for taxis. $2-5 per night for hotel housekeeping. Not tipping is considered very rude.
Very casual. Americans dress down more than most countries. Jeans and sneakers are acceptable almost everywhere.
Christian majority but extremely diverse. Every religion represented. Very secular in daily life in most cities. Bible Belt (South) is more conservative.
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プライベートまたはシェア空港送迎を事前予約して、ストレスフリーな到着を。
医療緊急事態、旅行キャンセル、遅延を旅行保険でカバー。
eSIMで海外の現地データを取得—物理SIM交換不要。
イベントチケットを検索・予約—コンサート、スポーツ、演劇など。
地元ポイントで時間または日単位で荷物を安全に保管。
遅延、キャンセル、またはオーバーブッキングされたフライトの補償を請求。
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