Cape Town's transport system links it to the rest of South Africa; it serves as the gateway to other destinations within the province. The Cape Winelands and in particular the towns of Stellenbosch, Paarl and Franschhoek are popular day trips from the city for sightseeing and wine tasting. Whale watching is popular amongst tourists: southern right whales and humpback whales are seen off the coast during the breeding season (August to November) and Bryde's whales and killer whale can be seen any time of the year. The nearby town of Hermanus is known for its Whale Festival, but whales can also be seen in False Bay. Heaviside's dolphins are endemic to the area and can be seen from the coast north of Cape Town; dusky dolphins live along the same coast and can occasionally be seen from the ferry to Robben Island.