Logistics · Destination Guide
Alpine lake walls, practical shore diving and the Bernese Oberland above the surface.
Use this travel brief to set arrival flow, local transit, and gear movement before you lock your itinerary.
Thun, Spiez, Interlaken West and Interlaken Ost are the principal rail nodes serving the regional itinerary. Major international arrivals generally connect through Zurich, Geneva or EuroAirport Basel, with Bern Airport as a smaller option depending on its actual flights. Use the current SBB/BLS journey planner instead of assuming a fixed travel duration.
Interlaken Tourism confirms the railway between Interlaken West and Ost is closed from October 19 to December 11, 2026, with replacement buses and adjusted stops. As of the October 28 research cutoff, plan extra connection flexibility and check the live timetable. The trip can still be arranged via Thun, Spiez and the operating bus links.
Thun offers a rail hub, culture and urban accommodation. Hilterfingen puts a diver near the documented lake-facing training center. Merligen and Gunten may be convenient for individual Lake Thun dives once access is verified. Interlaken is more convenient for the adjacent Lake Brienz and Alps-focused no-dive days.
For the confirmed rail closure and replacement buses, consult Interlaken Tourism transport notices.
Zurich Airport
ZRH
Large international gateway. Use airport rail services and onward SBB/BLS connections via Bern/Thun/Spiez toward Interlaken, matching an actual itinerary.
Transport: Airport rail and Swiss national railway connections, Pre-booked car transfer if appropriate
Geneva Airport
GVA
International arrival option with Swiss rail connections through the national network to the Bernese Oberland.
Transport: SBB rail with route-specific changes, Pre-booked road transfer if suitable
EuroAirport Basel Mulhouse Freiburg
BSL
Cross-border airport serving Basel, with onward city bus and Swiss rail travel toward Bern and Lake Thun.
Transport: Airport bus to Basel rail station, then Swiss trains, Road transfer by arrangement
Train services connect Thun, Spiez and Interlaken stations, with STI buses and other regional services reaching Hilterfingen, Merligen, lakeside villages and attraction starting points. Boats provide seasonal scenic legs, but not every dive site is at a pier. Parking is constrained or privately controlled at some shore entries; do not assume roadside stopping is legal. PanoramaCard Thunersee benefits are restricted to qualifying accommodation and specific local bus lines, not trains; BLS lake-cruise discounts are separate. Between October 19 and December 11, 2026, use rail replacement buses between Interlaken West and Ost and check revised stop locations.
Switzerland is in the Schengen Area. Passport validity, visa requirements and authorized length of stay depend on nationality and residence status; many short-stay non-EU visitors use the Schengen 90 days in a 180-day period rule. Check the Swiss State Secretariat for Migration and applicable embassy guidance. ETIAS was not collecting applications at the October 28, 2026 research cutoff; do not buy an authorization from third-party sites. Separate scuba certification, medical declarations and operator waivers may be necessary for water activities, but these are not immigration documents. References: Swiss entry guidance and official ETIAS status.
Dive Center Thunersee in Hilterfingen lists equipment areas, filling facilities, rental gear and cylinder/weight support on advance request. Check current opening hours, any access key required for out-of-hours fills, regulator compatibility, cylinder certification, available gases and booking confirmation. Public transport works for passengers, but transporting cylinders and heavy wet equipment may favor a local operator meeting or prearranged vehicle. Keep equipment clean and dry between lakes; cantonal mandatory cleaning rules specifically cover boats transferred between designated water systems and should not be misrepresented as a permit for every mask or scuba cylinder.
Swiss Franc (CHF)
Switzerland uses Swiss francs. Cards are widely accepted for hotels, museums and many restaurants, but a little CHF cash is helpful for small establishments and local spending. Swiss lodging, meals and specialty diving services tend to be expensive by many travelers' standards; budget for rentals, lessons and mountain transport rather than assuming tropical dive package prices.
Cash machines are commonly available at larger rail stations and in towns such as Thun and Interlaken. Do not assume an ATM at a remote lakeside entry. Check foreign-card fees and choose CHF if offered a dynamic currency conversion option.
230 V • 50 Hz • C, J
Swiss type J sockets are standard, and two-pin type C plugs generally fit. Bring a compatible adapter and verify that chargers and camera/strobe batteries support 230 V before use.
Communications
Accommodation and major town facilities commonly offer Wi-Fi; confirm connectivity before relying on it at a remote shore entry. A local or compatible roaming plan is useful for transport and weather updates. Switzerland is outside the EU roaming regime for many mobile plans, so check the carrier's Swiss tariff rather than assuming EU data is included. Save an offline map and emergency numbers; a reliable means of contacting rescue is a dive-day requirement.
Language
Swiss German is widely spoken locally, with standard German on much official signage and written material. English is common in the international visitor industry, but individual dive-club access notes and legal signs may be in German. Confirm that instruction and briefings are available in a language you fully understand.
Insurance
Choose a policy that explicitly includes recreational cold-water and inland/altitude scuba within planned certification limits, and separate freediving or technical activities if relevant. Check depth exclusions, drysuit requirements, medical treatment and hyperbaric care, ambulance, Swiss helicopter rescue, repatriation and mountain sports cover. Verify claim contact details and emergency-response procedures before the trip. Never assume Swiss emergency air rescue is automatically free.
Packing list
Pack a thermal layering system for air and water, a suitable hood and gloves, cold-water-rated regulator equipment if bringing your own, appropriate drysuit or wetsuit, mask and fins, an altitude-capable dive computer, backup light, and identity/certification or medical documents requested by your operator. Bring waterproof layers and hiking shoes for changeable Bernese Oberland weather. Reserve space for dry clothes and warming supplies after a lake swim or dive.