Alaminos city itself is small enough to walk, but most visitors will need to reach Lucap Wharf, which is about 3 kilometres from the city centre. Tricycles — the ubiquitous Philippine motorbike-and-sidecar combination — run this route constantly and charge a few pesos per person for a shared ride, or a slightly higher fixed rate for a private hire. Agree the price before you get in.
Inside the Hundred Islands National Park, everything moves by bangka outrigger boat. You hire a boat at Lucap Wharf for the day; the boatman waits while you explore each island and moves you on at your request. Rates are set by the park authority and listed at the wharf office — there is a basic package covering three islands and additional fees per extra island visited. Kayak hire is available at the wharf for those who want more independence, though paddling between islands in open water requires some confidence.
There is no public transport to speak of within the city beyond tricycles and jeepneys; both are cheap and plentiful for short trips.