Where can I get the best price for SEA LIFE London? Best prices for entry into SEA LIFE London, can be found on the SEA LIFE London website when pre-booking your entry tickets in advance. To find out more and book the best prices, click here. Related articles Can I use a 2 for 1 voucher at SEA LIFE London? How do I redeem my Kellogg's voucher to purchase an online ticket? Why are tickets for some time slots slightly more expensive that others? How does a London Big Ticket work? How do I gain entry using my Avios voucher?