Puerto Piramides and Peninsula Valdes

Request a current weather, sea state, visibility and tidal briefing from the licensed operator. Match rock outcrops and boat routes to individual training, comfort and thermal protection. Confirm first-aid oxygen, working radio/phone, rescue swimmer arrangements, gas handling and a written evacuation plan before entering the water. Introductory scuba should be supervised by an appropriately qualified instructor; deeper El Barco and El Derby descriptions do not certify their suitability for every diver. Do not attempt overhead penetration at any named rock or cave without explicit authorization, qualifications, rescue capability and site proof. Do not conduct breath-hold training alone or confuse recreational snorkeling with certified freediving. For divers without symptoms of decompression sickness, Divers Alert Network suggests at least 18 hours before flying after repetitive no-decompression diving (12 hours after a single no-decompression dive), with substantially longer margins after decompression dives and according to clinical advice. Seek urgent medical advice and do not fly if decompression sickness is suspected. Local site descriptions; DAN flight guidance.

Hospital Rural Graciela Arrua in Puerto Piramides is listed by the municipality; the Puerto Madryn health-network site gives Av. de las Ballenas s/n and telephone +54 280 449-5081. This is a rural facility, not evidence of an on-site decompression chamber or specialized dive-medicine coverage. The Argentine Navy publicly reported on 17 October 2026 that a new operating agreement secured continued use of its hyperbaric chamber at Hospital Zonal Dr. Andres Isola in Puerto Madryn through October 2027. That confirms an institutional service arrangement, not immediate chamber access for every case. In a suspected dive emergency, activate local emergency response and the operator evacuation plan, provide oxygen if trained and equipped, and have clinicians coordinate specialty care. Municipal useful phones; regional health network; Navy chamber notice.

UNESCO recognizes the peninsula for marine mammal reproduction, shorebirds and orca behavior. Chubut whale-watching law prohibits harassing, swimming or diving with whales year-round and regulates vessel approaches. Observe all marine mammals from appropriate approved positions; never touch, feed, chase, land within a colony or interfere with calves. The protected-area administration requires visitors to stay on authorized roads and paths; beach driving, off-road routes and collecting fossils or plants are prohibited. Drone use needs advance authorization from the provincial ministry. Wildlife access and sea-lion snorkeling permissions must be verified for the exact activity and site, rather than inferred from a tourism photo or general operator listing. UNESCO property; IWC Chubut rules; reserve rules.